From 9f3aa83dddbe8487fd3d2f9cdf3290aed0335b2d Mon Sep 17 00:00:00 2001
From: Jim Pivarski <jpivarski@gmail.com>
Date: Mon, 8 Apr 2024 18:57:30 -0500
Subject: [PATCH] writing

---
 make-talk-06/equation-for-a-line.pdf  | Bin 0 -> 10854 bytes
 make-talk-06/equation-for-a-line.svg  | 506 ++++++++++++++++++++++++++
 make-talk-06/equation-for-a-plane.pdf | Bin 0 -> 9677 bytes
 make-talk-06/equation-for-a-plane.svg | 353 ++++++++++++++++++
 make-talk-06/main.tex                 |  13 +
 5 files changed, 872 insertions(+)
 create mode 100644 make-talk-06/equation-for-a-line.pdf
 create mode 100644 make-talk-06/equation-for-a-line.svg
 create mode 100644 make-talk-06/equation-for-a-plane.pdf
 create mode 100644 make-talk-06/equation-for-a-plane.svg

diff --git a/make-talk-06/equation-for-a-line.pdf b/make-talk-06/equation-for-a-line.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..ec73497c87f07b366b76276bbef274b392c98f48
GIT binary patch
literal 10854
zcmbt)1z1#D8!k#oNlGI_hXPZigmiaz4lu;fjUWOd-65rPN=kzsT0#&MBt-@RNoi2R
zJA=n_Jn`TEKL4Fz?>+0?E57}$#kcqS?vG7FMve!>3&m$^*s40khXQ~A7b^#RQBeS&
z3JhWAX%FB>L0b3#0Dw;p?&Jw`M;)CkJz+91YZn_BzPLEPho?Kt(iz`3J63NX&Qz9g
zexbUQEfmpP)wyg`6B(9}V1VTxVGu?o!sH+OE|O&DnEt(MM38E<%vzl3%~7`&-aB0j
zsk@=tN5Vby<!z$3;|UrH)W6JEG=2IIY-YB=GyG!a$s&|3ZWE$RgoFm*^DDXg5D!(H
zrs`pN`y3BZy$td@cKdpS2s_`sBmbgs<$}s{VQHa%dDZ+W+c83M8~6Bg^W&o@oLpaD
zb%L<@GUq}GbOWne;Z@rl$F_W@37nIOpV@8w$h12I9*Z?S8neTTAlw&?-6s|#H48p;
zB8_LT$$Xg*fUWT?#OwGWukU*6V@wfNMclTHfvSnt=T^A{(*!e}FFNl(4t)CPiUniF
zBAB0H_j|abV@!V@f4`>ja~gsUHwtqV*>wUP`)+r=>1S2Aw}z=I<*b_)FUaj3oyAhd
zX^ebE)sP}&PPeNANZ(rBI_P#z;gK*lI*L>#+!elmCx+XMn{kCwagSzx|5-De(rsmT
zE`D{Hq|dU&fjM9*z7Y9OS)6b24h{h={@Y;N&DMdnV$t7*={xnkG8EF@$*~o%=S1D2
zxXZm-W}(MN&)~1eMMB!XXXVa0W|~>dxmln7U<Om*epCepk-f8(eU7<6c-qQK6Cc&1
zSMxmv_1X!UDmLo&@|Z$tl=nMWy`yr9()cW9%8gS3*^-lqci5j;BUaAo@%850m3yn^
z3aDi3ga)OLdQ-;*`#Gy@%(G5OSa4LXZ#`<<K1LLpKY(?y+!rp6d_rFH_9OL<RNtoR
zW@io0(ts*ey6uNGI-K{Wl3TQySFQ0efDS4Rvd=-kwJ6csO!VTNl-7r28uh4@T}fgw
zZV{d|#S-TyI#AWLDkvBegnpFpBwo65qFF^0Bza*4dq)YlYQf*b1}~`i^of#0%Hn?L
zV%j{(YqJtp=c_m&3R!PdiK8eTA7?(sw_=`F>a>_<Zgnbh=pqbzMmlUc2#bnVUC)k1
z+&3ISxX_0_>72$QJMMc*tI#&{wPT7^AxnmxHcR81ill9*m4@&#LE7YNua4kF8e;5h
zsv5HT_eS_<x#GwtLEq1^I+h&exIk9KRhy}<*sd4XSA#Ds`!S+wda*`R;!`NLX4j05
zUkmk4*;a~Z#*Q<{ThLt$KJB||ox(yZjwK!}VPAZ$G<Q0sv0IDCd%)SrdDZF(^{MGt
z6Ya2N(X|KPF`irn*Djfzyy^6~U*)Dbfs}tO0zeYwR|nA1yom^FzVSq-;JX{^pm(bN
zkfAi*so`(yWsNC;F>Db9$$H2YOpO#Z`390w>2eM5E|=~AAv4j?gZM`z@nsmMVRVyp
zsbLiXl|Z}+`_BL>%2&15of_=F+<GC-JRnRLJyj&%V>5L6S+6Ip{*ch1CcOz#f4wm8
z5J$yYSXYZPc}&{@Zl2m^%)?c~RGF!rrp+`Mg-b%prkp}<#2hlC`HGrROpdU0-20lq
zGr1KOgOo=`kviSk(*w|KVD*s&;Hb<$HS?~*2I1&H-dV#l+ToD-t6JjYjYMCg>#4bm
zW!`OD7>{RfIqt57pSQ7f7uRf*_F9r7Q`I|?g5??ohh8#W*jVGk5H`PuDbz1?fI~+$
z^br-;Kp-I?x&pcg`6K>aMm$+xPkC)mRI~$#ilPD3htCp-DggMTB>^A+pS2}wkBWh)
z6F>HRaxMtZUuxU(0C|7_fuAuH-GMC+2n7lLgi!5Jf4`3p{$qRqpN^j^48W&hX$J$a
z0YI1bXjr<#P~C%mw&hcW*}yHOTzmn>C<q9E0D-*1AdoOv004sW^YVis{9s{#>1A7K
zlwqjG9sqQV{}IsT-Cev~e=+vQh?nTktJOx?;ckiWa7B-7?e`N_1bDi8!G4ycQMF`X
z-f(M}mb?@i{M{E?Fb@|mcWamj0PR<;U#?RKRsP$3M)(i2{_Q@4cHEB}5(vQ04+j3_
z#<L~p=&K`}R<d2T-rsSr?aP)Y$K50~jy%PyVLf43QolWKr*O@{SR~E1$7EveVtqsm
zWhPDU!N6xB!6L1rCcOe;#>^q1F(k>xmh-`SY3Y@w>1OD|0*0JSk#Kt;Fh{mG<0Oto
zgHG=mPk2>~2<v)%DEWeogTejoij?a}mmxo6EtMdd73Y1h$4ECZ&f<$t%oy+eG1w~{
zwoRMuce?kl%wctJ2T+L`P2{&vN^Xc@j7;pWjFc0eEK_2rXSjy%U(0i;myp{bdvH2p
zeDX2LlEtZ-TqVF_=fS#gJ;uY^fRlR<B6zbK3Li??8e>@qUAsOh3T!H#x(G0$eT-ps
zlT(8&%Qw}Y3BL7)V-u<0>76Rv0}huSsfFY;-FGYASFuB6KX!Pi_4*z6_4#N}?WxDK
zjZg4#1g?{zr+mPuU3>2eCQ*`weY0R=i|9zB*~LVzJ+kk^$HNaFhF~5CG+9obJ}b+n
zd3QWS_)LT+;q)(40sv&C1W?=r-I~tx@wZMv=7B+GOl_&lt08dCHTXIBY|U0Y=wi@g
zw8JXaarAmX!4bv5L3a5)YXjq~B#%90Z!$DxAhq5m;w;X;zj82#l_=C3gMQSpGi<JA
zw0OGnT}>y0m-m!z7AC!Qhum@Ph$z`=SL%qho!a9M`E%z*ZnH>=BwLdDLQrJW0vWsb
zmHv_#y5{B7#zxDnTSy$X#h_}xy`6@8qIFFUaU?cc*l`K!jBF!mJh)-=jooKNpEa;N
zT&XvJtr6y{6Z4PhCJF7P4A*0X9J3$j_AK|G6f#C?EhSdG7FeM2yrFX(_>e>4g0PwT
zW>p(SlK>mrM^|odFC`@<i^6hjt!Bn`Lzd%-Q@VhL$L%~6{Q7n{Iy`J+*OSQ^5N+M*
z0_<<c_f=N0wGwDsQV#e(y-$y+=JO+ua_3NaY$-Tro{1-WG*vI^%xDADBQ?t?WQQwO
zNsff9-*tXkF=bdu>DbH5b4_wme?SM)aN#EWf<E~B$?#oUB|YG+1{b*wqw0yabuT`{
zFs>-o2KZ+whWXEum;u&|Dm|>Zo5QaLxCdG}91ZnMCub^GDu)a^xSv{)?wdEY@rj3H
zXDry&UwsO=d!6$(^&DSByB4rHp*^I6eLH)4N+{soKyCWV^Vh=#1m$s~Mlbxgw|BNz
zgO4l9&)aQWY;6q<eND>Sz8ClL;Eul~rlLqu&(xsZJD9Ht+{ne~Ics=?^ro49j~l5$
zzD*FcQt2bgb5;!=Td|7pZ}2Oqnox`k>Rt5t4Xby9CRv6_rB>=;JEE7Mk8NF_*D#NK
zgj=yn5up|&@zuSKGlWbpKjlQ3toLp}97}|X0ntRIQQ46`hlt`B{)&3+8h_6h+cimi
z@23e({qLIgVe_XZCB!2Vpn#Fn<Dpx7SVQX<DbodmL+UOFk6S*YqJdUBA3M%*>+)1!
zZcZs@TeY#L$A|{c8D){zfE=Vk1=5vF<jVZ;<VOMhipp*(uQjy@^{i4Mi^_%ZqR;*+
zX0HkYq0cO)%(sGP)$vH|R<deMZa<avzcP?98NU@PesS{feg2rHi>T)()1#Y?`ram4
z4bHQRlto7l`?=-9>24e*qj$_`lJgSEJCDg^Oc}UYM#vR$oGVAmacZrAXI;m`EEmVO
zS7P=S{e@3FuI?#Cf6Z-dOmq?V{M0<|zQr*(>1<5gWa9XgBHQ@ujWsjnRy%U@8&Ypb
zM?UA|vkA@bI6Qdv+8Jj<dnS2ioJ)+%B;kI?Z5pjNi*#?}KM8p~#7~A7$&J(!=(koI
z6b&@nP(GGTGY`(p%BFjzIzY5iyi%NM6PDZ^;;JM>twvOm%ASs+q^%TMR8|BpqT#2x
zl|*-yh>NK6;kz4fM@S}w*A5GDv%~N6N{9j=i40Fp%ke5d7k_8wyVkp=N~Sfu4f@z?
z!Sy6@7SagX1^lyj4>EK&u|d(C5u;!H>io5hp+@7o2f4}btH8^tv5A;458~0YB^cYw
za_=Lg$7%g``_ZSWazpvXmxql$)8&$(-Y^?aV>kCW*&g|3F};eUE)ge9C*x*m;Po}V
zGLf|7d&}yF{ojQ1JQW>39_6I_7)}%Qep;3H!-5KMi|S<vw8dt<+L~k)(x%Rg>VhVF
zmltcpCJW2FBj({E^hb&1Igsu9=GT_{l-#CF`X1vwbC?d(Q=c{^HzL}wOq=H~AaWwP
zX(XOEp>O*v;KNO$pv_?rx31oS=gNGgB~rO<u^H5p9*mb>QoFOyz3RZYt$$j^a>BE&
zBR(%K{Y;C|Hhwo^i@1DrXL+6dMXbwniIOT^pBnwI8)vXnWrzCALT0M2GKYI__|8Ve
zjVO=Ene2jjN{Ovyg=7dDsYIfmo7|(1yJ4NZ)KFt~{jEWZR@~cOsBz1^OzX^glUoxN
zhip!dFRmK9EW9?_eD*Ein_q|gXdZG^XFMk+=&M@at>ts4_rlY>v!k_w%b2SMltaiw
z$JJ^EOHIEBuvuh!^c3w7F3Trqxh3gNjqakRcLWmJY5n-I*_F9sT+!CG@y^V-*77o5
z?YHj|TUVfW$%#(Vj5mODt;$|AB=k48$6~UsyY>uMo#WO!g6hqiS|zay_T_@knu<#d
z10N^YO`p{fg>|pUh?%LrArdp?d(&Sgp~tZf$$?CKbqF;pseaqRoj{W53P-$7{_QNP
zlPK}&H|Ud!__lZs%x~ioY6-ZqX)JGPv`!uFnbP<N`vj}Mp}&e<d3RvB#j4b(^hWE$
zb=hrZ^(sHQFhc`8>x>B5DaytO29_M_ce96X+itlvhB(PntT67hJ*~Y_oxM@dRZp*S
zfeGDh-s6-^-Abj$B_CE_jFN*K8I<RgMPqBmTcnH^9p2H+$L6Yz5Y6Dcw>`F1kDf%%
zY<<{*^DjU~v&2?R_KIBVuT<VAYYsEK7}lRuHTizhitUrOTr!9(*hF|AkNJHOZ~Pkf
z4J=+8AjW&&z&a&%a<+h=8JxI+K^^AS4gPGYJ$1V=Osq3kJMI=E?kToMX!nBvt+)RE
zmB%9Xw#kNJpOszSEIl$i5Ie6HloJ)V&6=icO!eQ74a)x3wrQGwCwS+8nEx<1a8E)|
zewg{7&L6Yy3)c}{{nhN;#wjC~+4JC2zStXgDb%ziuC`ea%t~t9$fF`HHk`)2^^vKI
z9>!r<kfhqo;7TL@G>6EQ%*V}QiRnoV#sL+Ez5&f<$(^W-_#2u<xZ;UlR+Ifw%s-V_
zUNaw7-$(8C+}bkOz29(l`B3nkk!b-2N4l--`}u&3cTViLAMX3o`gE@L^zJPx8esBh
zDA%1B@ZZ*UNF4|hW>V|6U7wJVP}Tf)Me+Se?t}UrQTOHRQ-dQ(W*m!jzW75aFbd|c
zN;d|AA8d=Lt_pTrT}R&5mgL5~CO=MIJzZ-DwvDc@4SHNxNjdnmm$KpO=2}m0-PCpO
z6t9^{Nl4&*iB8!QQsd6IU)6$eD_am(Vt%7-4XF3()9d}b0GxDuHk&H%8@Ba;&$mZB
zYdffa{E_drK6|p9?i<M^(kw}l8}&D)6q1bI*$6o^j(U6+owqPoGQ!lczA{{*%d;7N
zFCkX7<{=_#&5@4zMP9P;2}j{R?NQ7gQFh;00=DiM*>tAa)jYh9Pv_Z%xCwD^V)fXd
zRdxKLaJilNy?2`-!B=pI0%~q386V1rj^*Z#(}-%OG({Ea5eggmah@l?lsjV$_!u@$
z(>dvAEw|9@rD6kJEFOMZgiV^cV=dQjPx)4lG=HI4!O?Z3{iBjK>|0H0-<;(%$&k<T
z_UEpy_iFP?G#C7ZLRO$NH^1)zh>?Y$se2`Db6-IQhmtLtOrPQAoXKm(MnR{R?^%7m
z5}iHCQX@5D3#15H$}{D9z!Hd|v#(~r+Fp|`cjx7`hCyy__R~fBFZZozSrFL_&b939
zKI1ik%6ys%3sdbeeO%n?3#N>Xi>$q~lT86JZE-Ll#)_t{R%x0GGd$!p)i={mr;Om(
zBz0=JJD7OU$M3|MJZPz}n$0Znq@U!XGxnuR*AUa0!?H8-R%CkS&Jg?NW>@e=S8(b{
zFYqiq(N_~GvAVcQRs3i)Yv-zSI}lsq6e=G$8UAGDBL`V9$8O-wi)7;9*)T@svscmI
zn<+*ax)v195*mY1KXY45vrVJy5dFkKIh^7NCmS+nxRGC!1J#k$thtCTZ4OLiN>B2Y
zvs2NtqMoH&DsG~93z7ZSWbsO8cOvCkU-0Zwkr68gDqBVLNR!Q~I#m!y3Pg^DM#$(O
zJ27t{KQf6L^b?<nvR>B-3)s1v@m)0Rl<mcI*eUA^rdnO(2HCM5(h)INe~0x*2f1x(
zR(mI`t^I@>@7#fEJLM#*hk?xe$SS%gy|JxV*{^v%HrP1w_4A?@ye7rDZ~4kjsVDga
zP3>=toyvNs1n7|AADX9sQ{@)tbF)t76;N^-cf(|uc@wtrzNPn@ipgr<YU_@jBXQ&t
zMU%E-sY<ah$BmOrJ83Ib>?*u{JL!{{o{0*a$O$riqOR1!mBHDXUAQXr+YX$F?%J3}
z<e^R3H<Bvgt_!Pp!yJXWq6q?-Ot!(wn@qj!XSJra8`e{#yt}JZ$+I6lLn6+;s~M?0
zck+mUQE!(ilGu9@$s72TfXd4<w#Ok-BDEQC<4d~G0zKD?dgm$Yh;h_0nFgC%RgY4n
z2kS_hkR!ER>kfiSPoZ5IsS>#i(b4=64$;ZJxnQg^+6^ZwAzLkDsU42j&R{A&=o%2u
zhKj4HBpH-1#<QuNB{H!qoh63&C}rPG!6WOBhxD8X(Wh5NyWxDuTiPP)7g)?-r{{4?
zN#c?7T6`t#JBvlAd^^#1<63p|L<GyjfSzl7*ZC%UcU<FfqrK?aYZZ`hn8ZQP2_h(H
ztsW5*5I{BUEkYiKVrEoZf8fb{mFye+uthlY)dWbsTXI?r^y)V!j_bqSSI(ua?y?<?
z?nPZN4ewdm$|=}<cu2#vNi{AbLHrQ9c?)D}m5HmZII6>ka|={NfLSQ@lq}gxg_(d|
zQDw7BoTXOqN(b9fc@I{d&VwFb5sC%6bFzD6ORWCzQ2lWqwML+Pel3Mq>gTl5He@*O
zm~5NrZmFUUk*AX98-WO!He%=0SCOx{uAV6vr0C=j<=L=6NLcGQD@=9?>2`wiI=?q!
zNK7St$6_SqJN>5&f+pR+%ODUTA@ENb0)!S5{>INif2t1uM$l1|{|_P9G;s(K3M7#|
zzKAj`j((JWHPVJjckQ7pBli~WeKGd5sM;9AonwYsO>VC%9)bPu3ExjQ1gymzCERP4
zJ@_mMXJM!sTEXgilq^umDe18IrQ(Eg-@;ICCCFTCBuA5AiM~$Vq3Xkyt8d!SBXvTI
zIv<WPIHYs&bcUmBq4K<wCN?6wfk#2db8f?80W}xVE7lxk)#pL1vkP(6^UNu3riF<;
z%x(>#cLg)>Xh!!bo3(hPS-u~B*3XCOAO(c_Hj)}wgm3g^^{9UQmUN)}rlL?^QiAQA
z;s6EECdY+D_h7p{mM`w|Wn<B1`XcN%8uGTOG%Vyxa`>2ZU%X1s3VkmrAM*+c*&7^2
z9~c##$?jKdGn5nl>HkZo{yqWVU;O`19SE%}$-q3U-QljDF79ZN<x*-=vvfv@M4Ea^
zMzRXGWMB@KdS2Qnx#o}aa+c0;CqDq^k5d5jIj$ckoh<E8x(xV_no>VxBpwhD3<U5%
z1;7B1pfCgg0z<&RD@cl-mQHYMNrasf3;?`rC+T60)}w^MLYGCfedsa|N_V;hq%B<)
zU~oHolw^hK<`UBOggNU0P>LJ+3eW|Gp9S<4qE;3R3_z<xzp6!O`RwOv{Gm~y>;CA$
z%gXaoC(}XcQRs7*sFbA#>{5vPPo9Chdw5FQTe|;rfQsesWf1s>()L$(qs+fF32n11
z0`=kpj<5sp>BA9{2oLyA;BsVrxQ(a12TG2EfY1ux|MnGv{O@i5I-&r|Z~+Kf@k5D_
zAhhU-{(=Sn>|X$a*5=S(C~7gHlr_|^pBTR|3PEj`0wPKXbkRk?(QkbKm+|4(83O$&
zoc`45PzoffE3Hef{9C~IRndb80fqjm=;;Oc>h#`_@Cb&qS=Nu*kWYyUw1veIlids{
zmAM&>Ln;O0Y`7vzUKggLDtkBF3aV4~zz7REjtydteJ-m~HgPv!Dv#`4sU{M$Q;FyB
z23HaFE-kxQK<C9+(9z4F^O<T$K(O7&mu!f~O5pLxZ9Hao4Y3d@-G<ct>wzZ<M2Q(v
zHp7*zFiZQ*qeVrTso`%2>wX@N)!-@#xk7(ohoLz-N_}F#wezh=kVGuM2e-AbpTBTo
z?D<+dE&H7MG*!*Tm5opb2P$4AGwwdpX|@eT!8rrnfx0X&4rM#%<$S-!$i}OaxHUI3
z1%pT0XSoG~dcI+wiAv(=Zr~U`6L4$v9)z=S?M;ob@8yyzI<zpsKj)s$cMr6^3<y51
z(J`N*!aMDnNb;uw)E_@W)U>JJeByE^!dl@?TYLO*N}&xc^<ff&`T@Brx1v_mVvTUe
zsr;8Uh7LO+A~8_rGH{WgB>Y~>3s=pl2(@mv^3~5}H@ovbm66Yvs8Np~y8Zn1H1hM+
zlKOPgB=^8e#dk{8O_;cQncdn9oZIc`375kkhDS*ocVV7>BMT^!b89KJ2$-h{;GUH~
zpTF2r-J!*mHL0YcYZlC1<8ybR+WOAC{(b9Zd87kKN=KXSUe^-nd7{dvo#WrkvFh<!
zWK~xA%3^KnSG8JHRO}3I2_|+P-Lb({w|qnj%|akGWe{Y}&qL!}547A~w(7iA@iiu3
zTUpm^>jm)-Qp+ya>BS|^e$r}*6+@&=px%l>;=m%y{w*>u*wZ!qm?0pxUDmy)%^A1d
zxez_Fk=GuP6@+>levMyhI*>Z7^MBl0s+>~0O4&N$`ltihOwB#mD-gGycQdiuC{dF&
zE-GGVso`Cu`|?wvXB1qO4Vt*C_rl`dULB|(SDJtk>X|;zy8d={nB0_uu+NF2ly|$|
z9%9;`Dtw!80=7TfT{k17IFD2-7!cxe5API{{p8ADEg4an5U}jt=<XF3Li(yxHb$RA
zR44tB2W5owgcazN?Hid{$?TN#^PQVdN~GKQ%;uYC46J(A5~jGlUHfE)dh`q}pYTAq
z5Ya>KBAKN`UbGA*@!*P^$KxH1i|<&RJqfjC!soI}sb$~sN-{e=aZ=910Zj*Sd<k<E
z=V6jCKE~5(Q}a1es)K2ViW1NX`E-|_79*@cUepD^tV!d0vG#fV@1z2mPx1UlXPlL~
zNKzR01n3eKYgax$-_tmaah1G~C}pY^d#3_>UDcbH_TojI`{OcOXho&1Oj0I{^?0X=
zhM4M8dRl6PQO`8F(um5Py!^0%TZ4WXZ!&Cyq#|L;l{1yhXIVO9^yTGv&vvR_@t7^<
zXq#B%81(V;;OdEATr}j4nQN#e9k$-gcH3@Pc*VDRj5zc>$QpW~c*dS9zC^v%Ad>Zp
z?!x^-KRh=sSmc!OLZsYTonsrbVs~CXw&Z=c4y{V`2~_ZeK7OyVP+YL<_VP(vjQ@*3
zsHDuRej$ahvWygJ8Ft5(lo6pFLcuqC$}vn*X<`vZG@%sM!;O`O6c)pu-qJI7TV18R
zUQ_cje2uagPhx>nsnF2KiZIb3R{QqBHNlD6d24tiC`?&sO?<_Kay36E&`U%X{Mv%o
z@`|;X$3T~)-!R*4ix_aa1>l=uq9Wx?3p1XI%v7V8s7$Q-4FN~<K`FRj=S-p{s7os9
zXd=($_H(%}@4uGoFKq;7(3<CDm%b?P9*8^{mx=GAqUC^I%tS5G29F69@2&#k90EUV
zX*_ZCyz_=3^~t?;jVCvd+PLDN-Q9A}!`eQ1_6r;2wOjJgi_+b^K1S$u$H1q%0kOxb
z^ddrc8KM?HVzj@f*7?%w`f>h|hy`-~+K086QXiG}^EC60oVcde_H`bK*7m9IwskX%
zU0DOZp<*9^V*~p>ay#Eb)eil6%>pK>&4#)w7`WDTB}BA#@UzSZ`i6qqpI7U46xLSX
zOPhHgb?>lFY^F&tf5t9PjQdz_C%^BD)ztod{jIU7obUyQ&GD(PQnfR1WH<+8f}q#;
zqJ{7<kSW)3zibu!W^!HAS^W97Yq=h=w@_^k)oj&R{;m^ku41PPG<Wi(p|A1cL>J@r
zns3yq-(Zg(rLn5$z=gW46+twQ*GW+y-`<W#>}y(edno*DI7F2;-o>+`pI@N07R1fC
zBqe5>pD0Zm>YLJAz%H<}B51Qn8hf~5G~plXwQJ~LdTVlG=w$Fw)TopwcW`-a+Cp3d
zEithqCawTh!9Cwc(v0|vk{px3hGL2e!^%m6UN3{xINWvvnof1-_WNe_C9~KYv_t&c
zEqC&_$C~dvV066wwz-1DN8qD8tup^QW^;GQEdM$b@z%f!8Np8JIOngN+^V~j#y-~$
z)Sh>;vSg>s$S{w{g09SGR3nD_iB;ZZHh1<M(!PfWnimugmO0>q^b1-^Jglzs%d@Q9
zz0F-=dq*dgyq=-7Qb9YFsFXxpH}Rn(L$jQ9+DcYeN!4VtgKcrEk~O;{1Ok#SnCm%)
zR@sQn_!RZ|@E7B{g)^qB6O<0As#teF#~9=#C<T+Js~(mOUCmhU_IZ$@wXUx{t|2mA
zqI8}iI`EAB6gUv8tg6!9Q_WtyNG8Fa!PzqPOi8qPDmJ=L{+%p)-+uNI%cHpc($c=>
zS_J<{Xe}a!W=qR@95fS7V9hy6z1)vYyIO*5&nNUU!;)n=FXzORy|b(kp&WZ)ZPP)o
z`B{hMjG8nxT#b-%vhbnfj=2?oC7yH+byC!WGb>#SW(l7By=aioLl0{q`K3*0_QXQT
z2tG4km;y<tdkaP=E_UKZ_g(k05caN{VFln%@^P4*fV%pt+;<+_RxcmK2ULWQ#^{3I
zhR5738!VN+Peqhsbzd%+aon%LlN>%=B>OR*X(EDxh;c)l$c6A`lfIwU;xyO1S@T9w
zG!HNNh!pGoWYXJ26FvrBq5Qfha!C(OyNl@ui}UC;G`Um(eN=_&G@0sr>15&w1o^T(
zY4dzI-(8^J)H!xsoTd*1Ge<-W|Ah#kAC`U+0k9zC4<`2WMfEQkIiNpYC;!)!9Mc3b
zL=S)@JU|V!Tx`(UDwme8y2LCIm5gaYO<#C;zpr^`3$wBzQ41r}?@MU^tBoD7#w&n?
z&<rW$<Zhf>ES+%}-s)ZCcnE<2qwegMRZ;@>&13#0a6-J4W5N?z6UY}=e{Z)gjw={@
zISlSkY19_p?|z_dN<lOOU>f;fI`jD6cVr&eQesVi-2WJLb1#T@>dBI$`Zd!EzGDRe
z5tHQFR}XC|jLL34Kkm5e{{4AqM*BJFwx{5Y60POZ4+X|$-#X;!+d%28&Nw_$_e4p=
z`%<jRb&Owrl6MjL7bpHC3aDpGF!)b4i+<YuCx7^lY)VO9U0PN47dFKs<>F-X<3Se9
zQT_)?B_NEVRH)}~kgy<X2SV+Byp;d{qEx7EE{*zsp;VU-=)XR(|GQ6q^!Hyl)&I>u
z|B+ZhA%8gVPsgJu<{up4Cyn|qyy^#6`THKtnEuI9ex$DbnO%WaF#fs@(AgC~$g(or
z22I;8dEW1nBkkgaPPX_ZZ2|Oa-hzg^i;b5xDj|;3+7j;W0s!%X1bBe}PJ2&JSJaDg
zRBi|gwR5+0wTD}K@VdC$as6Q4(x`Mf6om(f%E`*f0fA6qAW%RSwMhYif~W)z0rUn!
z{RX0r{6G{N2Ld6eG8k3ok0T01<6t3F9n>ZW{e44W=sqBlsB@^k(VM`3>mNNfs-7UK
zLjlyFVByPj7QRa};VuXnbovXYj0hMAh615LA&?Lh1cC4X`8j|<u3vrgQ%gcesvj&}
z+7hK0xY%7z{H3RV&s_O)Mtt32w)iMQ3dBcQ{`&_Yz|Rli2iO9B$ApCiP!oy%01!Vh
z5EP7JoPWc>!vClT1fogr-|GpYX8Ere%IPTc|B49<f>8_RuNVkr+ut#M0mwh<@eA;y
z0{UOu3jB*L0ze3AN&T&!AQ<&u@mEY3D2$42f5Sj%vi>&=`cIpMq0qnEf?7_HzqbXU
zR@X1}Jl!o(T8#T;Ca5;tABLVIG-cOvaY6l0{F$tyh_FR1{XY~N4^K;X&&ydw^(P>R
M&&DRJE{Fer0J+Uia{vGU

literal 0
HcmV?d00001

diff --git a/make-talk-06/equation-for-a-line.svg b/make-talk-06/equation-for-a-line.svg
new file mode 100644
index 0000000..adc9d95
--- /dev/null
+++ b/make-talk-06/equation-for-a-line.svg
@@ -0,0 +1,506 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="106.15504mm"
+   height="51.337467mm"
+   viewBox="0 0 106.15504 51.337467"
+   version="1.1"
+   id="svg5"
+   inkscape:version="1.1.2 (0a00cf5339, 2022-02-04)"
+   sodipodi:docname="equation-for-a-line.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview7"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:document-units="mm"
+     showgrid="false"
+     inkscape:object-paths="false"
+     inkscape:object-nodes="true"
+     inkscape:snap-global="false"
+     fit-margin-top="1"
+     fit-margin-left="1"
+     fit-margin-right="1"
+     fit-margin-bottom="1"
+     inkscape:zoom="1.760122"
+     inkscape:cx="127.26391"
+     inkscape:cy="-15.907988"
+     inkscape:window-width="1914"
+     inkscape:window-height="1157"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1" />
+  <defs
+     id="defs2">
+    <marker
+       style="overflow:visible"
+       id="Arrow1Mend"
+       refX="0"
+       refY="0"
+       orient="auto"
+       inkscape:stockid="Arrow1Mend"
+       inkscape:isstock="true">
+      <path
+         transform="matrix(-0.4,0,0,-0.4,-4,0)"
+         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
+         d="M 0,0 5,-5 -12.5,0 5,5 Z"
+         id="path17483" />
+    </marker>
+    <marker
+       style="overflow:visible"
+       id="Arrow1Mstart"
+       refX="0"
+       refY="0"
+       orient="auto"
+       inkscape:stockid="Arrow1Mstart"
+       inkscape:isstock="true">
+      <path
+         transform="matrix(0.4,0,0,0.4,4,0)"
+         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
+         d="M 0,0 5,-5 -12.5,0 5,5 Z"
+         id="path17480" />
+    </marker>
+    <marker
+       style="overflow:visible"
+       id="Arrow1Lstart"
+       refX="0"
+       refY="0"
+       orient="auto"
+       inkscape:stockid="Arrow1Lstart"
+       inkscape:isstock="true">
+      <path
+         transform="matrix(0.8,0,0,0.8,10,0)"
+         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
+         d="M 0,0 5,-5 -12.5,0 5,5 Z"
+         id="path17474" />
+    </marker>
+    <marker
+       style="overflow:visible"
+       id="Arrow1Sstart"
+       refX="0"
+       refY="0"
+       orient="auto"
+       inkscape:stockid="Arrow1Sstart"
+       inkscape:isstock="true">
+      <path
+         transform="matrix(0.2,0,0,0.2,1.2,0)"
+         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
+         d="M 0,0 5,-5 -12.5,0 5,5 Z"
+         id="path17486" />
+    </marker>
+    <marker
+       style="overflow:visible"
+       id="Arrow1Mstart-3"
+       refX="0"
+       refY="0"
+       orient="auto"
+       inkscape:stockid="Arrow1Mstart"
+       inkscape:isstock="true">
+      <path
+         transform="matrix(0.4,0,0,0.4,4,0)"
+         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
+         d="M 0,0 5,-5 -12.5,0 5,5 Z"
+         id="path17480-6" />
+    </marker>
+    <marker
+       style="overflow:visible"
+       id="Arrow1Mend-7"
+       refX="0"
+       refY="0"
+       orient="auto"
+       inkscape:stockid="Arrow1Mend"
+       inkscape:isstock="true">
+      <path
+         transform="matrix(-0.4,0,0,-0.4,-4,0)"
+         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
+         d="M 0,0 5,-5 -12.5,0 5,5 Z"
+         id="path17483-5" />
+    </marker>
+  </defs>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(-84.145133,-94.135053)">
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+       x="130.54138"
+       y="124.13152"
+       id="text10781"><tspan
+         sodipodi:role="line"
+         id="tspan10779"
+         style="stroke-width:0.264583"
+         x="130.54138"
+         y="124.13152">b</tspan></text>
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;marker-start:url(#Arrow1Mstart);marker-end:url(#Arrow1Mend);stop-color:#000000;stop-opacity:1"
+       d="M 85.666542,130.3596 H 188.77876"
+       id="path17472" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;marker-start:url(#Arrow1Mstart);marker-end:url(#Arrow1Mend);stop-color:#000000;stop-opacity:1"
+       d="M 123.02167,143.95111 V 95.656462"
+       id="path17901"
+       sodipodi:nodetypes="cc" />
+    <path
+       style="font-variation-settings:normal;opacity:1;fill:none;fill-opacity:1;stroke:#0000ff;stroke-width:0.5;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;stop-color:#000000;stop-opacity:1"
+       d="M 85.666542,124.7172 188.77876,97.257042"
+       id="path18050"
+       sodipodi:nodetypes="cc" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 141.08824,109.95766 h 36.0704 v -9.60603"
+       id="path18301" />
+    <path
+       id="path18385"
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 177.15864,108.37015 -1.5873,-6.8e-4 -2.1e-4,1.58819"
+       sodipodi:nodetypes="ccc" />
+    <g
+       aria-label="}"
+       id="text20402"
+       style="font-size:14.9801px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.936256">
+      <path
+         d="m 124.35035,128.41218 h 0.51201 c 0.68269,0 1.12643,-0.10484 1.33124,-0.31453 0.20969,-0.20968 0.31453,-0.66318 0.31453,-1.36049 v -1.814 c 0,-0.76071 0.10972,-1.31417 0.32915,-1.66039 0.21943,-0.34622 0.59979,-0.58516 1.14106,-0.71682 -0.54127,-0.12191 -0.92163,-0.35597 -1.14106,-0.70219 -0.21943,-0.34622 -0.32915,-0.90212 -0.32915,-1.66771 v -1.814 c 0,-0.69244 -0.10484,-1.1435 -0.31453,-1.35318 -0.20481,-0.21456 -0.64855,-0.32184 -1.33124,-0.32184 h -0.51201 v -1.04597 c 0.93711,0.0514 1.37086,-0.0342 2.05404,0.54127 0.40961,0.35597 0.61442,1.07279 0.61442,2.15046 v 1.75549 c 0,0.72657 0.13166,1.23127 0.39498,1.5141 0.26332,0.27795 0.7412,0.41692 1.43364,0.41692 h 0.4535 v 1.04598 h -0.4535 c -0.69244,0 -1.17032,0.14141 -1.43364,0.42424 -0.26332,0.28283 -0.39498,0.7924 -0.39498,1.52873 v 1.74817 c 0,1.07767 -0.20481,1.79692 -0.61442,2.15777 -1.08302,0.56372 -0.98786,0.54128 -2.05404,0.54128 z"
+         id="path21738"
+         sodipodi:nodetypes="cscssscssscscccsscsccssssccc" />
+    </g>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+       x="179.81021"
+       y="106.79899"
+       id="text30527"><tspan
+         sodipodi:role="line"
+         id="tspan30525"
+         style="stroke-width:0.264583"
+         x="179.81021"
+         y="106.79899">rise</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+       x="155.62392"
+       y="114.41966"
+       id="text32599"><tspan
+         sodipodi:role="line"
+         id="tspan32597"
+         style="stroke-width:0.264583"
+         x="155.62392"
+         y="114.41966">run</tspan></text>
+    <g
+       id="g46162"
+       transform="translate(0.5682889,2.0564459)">
+      <text
+         xml:space="preserve"
+         style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+         x="166.08344"
+         y="122.12038"
+         id="text36005"><tspan
+           sodipodi:role="line"
+           id="tspan36003"
+           style="stroke-width:0.264583"
+           x="166.08344"
+           y="122.12038">a =</tspan></text>
+      <text
+         xml:space="preserve"
+         style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+         x="177.14026"
+         y="119.20632"
+         id="text39481"><tspan
+           sodipodi:role="line"
+           id="tspan39479"
+           style="stroke-width:0.264583"
+           x="177.14026"
+           y="119.20632">rise</tspan></text>
+      <text
+         xml:space="preserve"
+         style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+         x="177.5175"
+         y="124.94383"
+         id="text39485"><tspan
+           sodipodi:role="line"
+           id="tspan39483"
+           style="stroke-width:0.264583"
+           x="177.5175"
+           y="124.94383">run</tspan></text>
+      <path
+         style="font-variation-settings:normal;opacity:1;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.3;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;stop-color:#000000;stop-opacity:1"
+         d="m 175.12042,120.95762 h 12.28947"
+         id="path43754"
+         sodipodi:nodetypes="cc" />
+    </g>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="90.753746"
+       y="125.7065"
+       id="text47701"><tspan
+         sodipodi:role="line"
+         id="tspan47699"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="90.753746"
+         y="125.7065">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="92.91835"
+       y="121.79684"
+       id="text48301"><tspan
+         sodipodi:role="line"
+         id="tspan48299"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="92.91835"
+         y="121.79684">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="95.803085"
+       y="122.51342"
+       id="text48305"><tspan
+         sodipodi:role="line"
+         id="tspan48303"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="95.803085"
+         y="122.51342">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="105.36982"
+       y="116.85126"
+       id="text48309"><tspan
+         sodipodi:role="line"
+         id="tspan48307"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="105.36982"
+         y="116.85126">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="109.13808"
+       y="118.35748"
+       id="text48313"><tspan
+         sodipodi:role="line"
+         id="tspan48311"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="109.13808"
+         y="118.35748">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="113.24555"
+       y="117.19326"
+       id="text48317"><tspan
+         sodipodi:role="line"
+         id="tspan48315"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="113.24555"
+         y="117.19326">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="116.42892"
+       y="124.51575"
+       id="text48321"><tspan
+         sodipodi:role="line"
+         id="tspan48319"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="116.42892"
+         y="124.51575">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="126.56508"
+       y="113.05441"
+       id="text48325"><tspan
+         sodipodi:role="line"
+         id="tspan48323"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="126.56508"
+         y="113.05441">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="129.3002"
+       y="111.11547"
+       id="text48329"><tspan
+         sodipodi:role="line"
+         id="tspan48327"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="129.3002"
+         y="111.11547">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="132.92491"
+       y="115.74277"
+       id="text48333"><tspan
+         sodipodi:role="line"
+         id="tspan48331"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="132.92491"
+         y="115.74277">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="135.95868"
+       y="108.52752"
+       id="text48337"><tspan
+         sodipodi:role="line"
+         id="tspan48335"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="135.95868"
+         y="108.52752">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="139.66757"
+       y="109.08821"
+       id="text48341"><tspan
+         sodipodi:role="line"
+         id="tspan48339"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="139.66757"
+         y="109.08821">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="146.87305"
+       y="110.56707"
+       id="text48345"><tspan
+         sodipodi:role="line"
+         id="tspan48343"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="146.87305"
+         y="110.56707">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="149.71153"
+       y="107.19157"
+       id="text48349"><tspan
+         sodipodi:role="line"
+         id="tspan48347"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="149.71153"
+         y="107.19157">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="158.06903"
+       y="103.44314"
+       id="text48353"><tspan
+         sodipodi:role="line"
+         id="tspan48351"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="158.06903"
+         y="103.44314">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="161.37874"
+       y="106.22173"
+       id="text48357"><tspan
+         sodipodi:role="line"
+         id="tspan48355"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="161.37874"
+         y="106.22173">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="164.18124"
+       y="107.30139"
+       id="text48361"><tspan
+         sodipodi:role="line"
+         id="tspan48359"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="164.18124"
+         y="107.30139">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="169.63226"
+       y="101.21255"
+       id="text48365"><tspan
+         sodipodi:role="line"
+         id="tspan48363"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="169.63226"
+         y="101.21255">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="178.26834"
+       y="101.60555"
+       id="text48369"><tspan
+         sodipodi:role="line"
+         id="tspan48367"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="178.26834"
+         y="101.60555">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="180.70854"
+       y="99.333832"
+       id="text48457"><tspan
+         sodipodi:role="line"
+         id="tspan48455"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="180.70854"
+         y="99.333832">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="184.38905"
+       y="100.79583"
+       id="text48461"><tspan
+         sodipodi:role="line"
+         id="tspan48459"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="184.38905"
+         y="100.79583">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';fill:#ff7f2a;stroke-width:0.264583"
+       x="164.2632"
+       y="98.221489"
+       id="text48465"><tspan
+         sodipodi:role="line"
+         id="tspan48463"
+         style="font-weight:bold;fill:#ff7f2a;stroke-width:0.264583"
+         x="164.2632"
+         y="98.221489">+</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+       x="186.9334"
+       y="135.69763"
+       id="text49417"><tspan
+         sodipodi:role="line"
+         id="tspan49415"
+         style="stroke-width:0.264583"
+         x="186.9334"
+         y="135.69763">x</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+       x="117.08478"
+       y="97.450157"
+       id="text50807"><tspan
+         sodipodi:role="line"
+         id="tspan50805"
+         style="stroke-width:0.264583"
+         x="117.08478"
+         y="97.450157">y</tspan></text>
+  </g>
+</svg>
diff --git a/make-talk-06/equation-for-a-plane.pdf b/make-talk-06/equation-for-a-plane.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..9fa34edc1da993c5b4a0dd42217d7217fa7c7981
GIT binary patch
literal 9677
zcmd6Nc|6oz8+UcLkw|1uW6RF0W^Bne*6d^p6N9mgZEPWB%`${+St4X7St23HkVy7D
zvaiV&A>J9Kr~B@HKF{a#{`0;w&K&1D`*qImI^XZPeq0)INI{Sgl$@)4sc45B3IGBe
zZrYGbNC1RY(O4^-H2_8wX^{f}0AVD?4u^Io#&#$iS`KaQV1XvTa)sOl=Zr?#lY1oB
zT)$?^qHwOJy?8bw<!NEjd@<i?(bF=3`~K!5epHu{be66f&W^jwYk9XU^;WROC+;dL
zRx`Q!;Cj4@ZFo7oFP*MSuu(17%Ka4CG=)(rp})pbd;9y+jN{ssz(`*_%@+Bic-q_b
z?b%bC?uhu;!C3*O4cY*AsoM>_u?e<k^GZsBnyzv+8XwbbbUEAfMdYQy`+`b2HBoE)
zG4s-Bo=((B_o}v5=LjXk4=klG3@#+Fm$eFzvuRL;dXXi{FMxPg`C-n9C-Zo<K1<)~
z9&9Us*IlYNoyxrsF$2i)bmHJG$)w|f>$uwV@Hyv8Biv{yEkoVqfD`?l-KvgR0_mIj
zx@JMPgif=dLFLpWG9fKlVa+I})(@}V=SXO0dS2|{6(8+5;tZK??zNh~o~O>MP$sfI
zIRb;=12xafWr+z&ap5o8+g_C~dFWUaCDuThieshnpchI{A7iClT78%%(z(!05kD8|
zm}AWSTvk^l=%N@8I^yP?oTHKFtE_A<vZ1&X>dGX_{{pm1h8i{-MeIylet9(AJWS1b
zgc(qtlx8X_zI!$U0<m}iJxvK}ppbidjB&S^HXuqJ-Q;W2i@j4iN4_tb8x<`AsCqNF
zWOx#sdGhjITWz`Xv%}qF8ja3!o5MC{_Le<d$Gn5~$7xTXnbTQ~)1|uNsMBWe73{4t
zkSjR0o&#nx!7^Wq;!LK<ze8|Gb_TPv6d)-b_bS1({lx<%4grr66KR=(xb&=4?Enna
zcdcB;GC-F@+RoGTiTawq>br8{F|YR0%~w_>)=UPc7S#n*ZZmO=8%IRtG>!@8jGUV$
zWLUa>GCX<d4u$r}1mZCZQ?<~ghK5A?u(^J^oSm64zNF4s0J``b)T9~Rdu~NyK}sq}
z(x>cbY<I=C@TvyR;D$Xc)loY#N2&`vZ|_hP>KZr9emuK(UwZ7-zP-=7ugejd{4>i9
ziT*>&LQmE$%(rRxA9SX^J<85(RP^cT&T9_fiAHgct1?$5j@93tS?YF@Jh99%*Vy%9
ztPN7Fhkb1g-+la1En(REj(&M;OOMU<+<76YjN!BA5Q`3K?ogObg2$<rCx8m%m;v%7
zwmp=W0V|hQDMQ_BKHk2VFn*yjTC302#1XM{Bt>h`L_IMbZ`Mvng+V=K2vjJGI&v~5
zz>0T(nkO_{@`K~_^pL!1V&;8v`mv3>A*r3QkKqNZ=cruf!~uo->tNYkQHP=eLdEFS
zr(~s#v2+S~5MN0bZ?}_ghfX7eOvZ|h@$*Qsud+sJQ0GB-%NZM%QhOf;_~Z}=p{$2e
zzWl;G!>bJ$Rzl@%is$XcK3>6hFZHBE#=7r>G5X!mRvV8|^YT9ySlu)=y?387?$yZm
z)%l$|(@`HoF{D)Os$<E1W52m*xnZbq_7S9?d8LQEC5$Zjnqn67jkF;RFU7BPamfBl
zTFUDj#=HFSwz+qvL-<2)vZzj%`9P=_l?t8nL`tRg?@<%#7;n@;=N|=t6zvKXEvJy)
zT<5vH#WVsd9tv36dE9@p?`>tI!gak~=8lT{nxT5`F7DJ*nE%d^p*F8)RKgY5K?FpT
zp)1AiW&BE&j5oiTDw=u9>{0r_=7|QAwpt&SrL%;0<Cho>UG`FUYE0d{i!UV$eXiYC
z2RoP|$#2dk#SugzS3ap~Im{$)t=_Wj8mzWpM8gK`D^O&5)zwrnakmFvl=60-k;C?s
z-I%y<$>y0$=nzq?Xpc2qV>l(GS^;xm^-sey<u8i`-x&YOkwktax!TFct919T_mR~6
z<Y=tLPeV%lk7R;Lc9#?rEiVWH1(OPpl8|2(`oJd3d*BqbaYTCzkdPn=h#z4TkeC1n
z%Sr=40AX_!@t0_&5A#5Wc|al9K`tr&k^kdY80mn;{nnbLAW#qp5IH;rNF9(wAOQSO
zM65^r`#C=Fukitdbvzx>0AUT36&k<=03D211Lce+HV-<iD|`)YfkDYQcmRxuA|L<^
z6BPnNz#vf(02l-l0>WS*C=77ppsp-&V8qHU0MaS-<496)c5rq4ZLmLjJdhsFSerNw
zXB5`Ok<_!f=b=~$fOB?5AEso9rR30V7<06if(%LcQx{rj7YA2obF>S9q<5{~=7}Jt
z|8Y`^{u<W5os=ZS{WwxV04M~3_}kIhbKT2Zrzd4UWk=GAb@P2n6<qcFnqLU&)t$Td
z6Rvvnv)zf7<BdFbUVw@7jUwu(|D6w~8&8lc`}<|cz0rxf>9|yob^b24Jgxj@@5tpX
z1HNj3LaZyZ(O}jf{!?aMNLlqzyTbnP=Tyi{>gYuB=uWCv&~fU-vc#)VT>Ny!+jGI{
zMeM7J?B<`M%Wc_l?rMxt#i@$31YP$+eV>Lw^vk<WV$OZ5J52ne0!%Gm*5vXkFmvNU
z>AAP0qAr*jVrXa<vtPD_t6O<{bcMneg7I${2uTcemfu>q!b1EgjFK4JO-ekz^9?K-
zv?1Q5HRpN76+N8%e%8NNDQ;BmBy7IYPUqBsp)i_oY*l;Jo6p-Oh7Gegm-^9Za((^l
zIvu5x%ZPPR(hyH>9izeb<%LT4*3Rh1iMQO+Gy1*N%F*(kp!nUJb@VNYu@A7fw0w@v
zc<)c{y%oUNQMG5E2~0|QxG-H+#Z@I_0wgcOU8?Q0r{(d?s^%cWF`N)^IUn^>y*GyI
zNh4OPsA(ZeC=)Kq%S&;z4;V1Ds@%1a#4c*^q;F=U`pTo{!|TdyKI?y>jRPqjagVL*
zaJA0o$>nTU<ORfdSN1&bsa0hSy_S=&9FQOL<rP28yxL~6Ti3h(v9~qybLc?bHJh4<
z?dFB8BFc@9M-#4nq5Tt29#}q6g()OxPa<4ujmHXM%x&d2{f!rHn17BoYV}#={g$vv
z?eg4HQG&aU<I%<y^NOT_%b8lYyISP(lsBvlzcHjg-qX~3lgiTqG#MEa+=w>_bUT67
zg6ziXwH9SCX<Buo?&hs@d)j)#_QY%}YC27XMF!OG)qLa_PlKcC>`kAZS}X~(jv8%V
zJF|CTC(!PL>4l3k>rOtq$y-IWGs(^L-=6KY1o9V$s!4X`Ks(oMI$EZb=tWPR=`kpp
z))y#eS?aXDZn~*eJqmA)Im>jpz(P^>ZDoiBg_rs!ch|5HPSgO*B0~AD<D5*VKJ-eT
zE?396#e8{A_s*M6xIB8lo^n8<)WvdifKqurth83yHRRdcRXYo$C0)_mX^WWr2LkT3
zQ=iL+8mLrk;LV`3D9dc|FO!Jxx*<AhHiqCwpX$BGOIg0wu7)OQx%H&JtMOIN*jD6x
zc2Ug{jFDeM<MURq_nEr~3zis7l)$o<EdsGMLA|#=x7ocnjHwB%K-;|?jxOig0bYFX
zESjw8mXY~@Fv_EhWr%VwY%+4r;1P<>MG0x27Z1O_<A9;74y7O6Ub1(`6_0+<-no0a
zy;4xt^z-bjJ~wM><#<V`>&hy|0nfiZ7HsP2rW>(0mA0>q!w<iKT{=%ic;e|3G@7OH
ztRO^28ZO5+bhiINvR?%z@o3+(R_CEraf{rgt=k{O=8iAjncKYM&BpjFS&HtZ15lvX
zm*2$}DECOWYK^t2Nzmn;)|KpTpSKBF^jr<DZ)IC%RvOeGUG`1yOH~%h*WOJFc%}QM
zSG5jf9V#~ac`uhx$C2wx^FI*MI;$YYH$q|b>8d3V0*wv|`-GH3>eMca`F68l&r*e#
zDV$IUWdH2JN6m#y7to<;)yjtg>xIt51(J{C($au9f)c`W6S$}G-&(#yT9cMS&E$Ee
z^}1L<O$m_$&LVYGYu|kI$4t%MKc7A|@8_C6fX%RmK5VV_cMqN)!PjooZ=_!=>#FM+
zWa>vPpZ<J$X-&#TlF9l^MIfc&slOEb6lBOY?Kl0z$AqRV^3xaul|#dn>o}vA)k{jO
zdOsE~8QfNJbt+25DGv)_rFzy0K^2KZc~b>@HTr7)*S>^2+&zC>k*U;!Rhd%TuPo%`
z8;KJA0{YD`h44Q7S`>BE>*hDjYgK)e6rAnWHuNs?l50jqtHHp!MfKfw2S3+jdi$Go
zh*ve=ZG2O9n8)$L{TrrdIqNhU_OTGf?^)Nj>iXr#Tss**7i*nbq7P=UwOF-zQpPOY
zsrMqDH~S6al_2s2w|hdG@Zw=Ls}F2SI$9v@koUa)LSZ&yE#MY8{Rb=Yv6BLxI`3ms
zR_ULG5#Cu2a4n!qc?ey3$cy8eL4D!0+n}=<YEE|_&LOVIfz(>&z>4%A0x54jD(B3f
zr6})|9&D}%XjC4wu!By6rxfzS1}lp#Zqr}Kz>VCEC9Yb{IVqZ7zIe`Rpct|alDuPM
zP7`lY($V~N{~p?PWlzK=F7rKkOd04Q#!hnKh0B*j|6{IhPff?4+i~c2NvmgbFSeNr
zzP)$xe70P%6;-)5yw<PB<GNj}=jzjBrNT$@M>e`!o()BNN#Ok)F8TYIYrQB@>kXsa
z*68(GwiqbplDwIsfUjEA<Vcw;c|Y+~J?4$xqM1s}Fw6X^UQ5Z#M_e98{kD%|dD77o
z_L=mv@_bj54GlWe>QYzc%|BL|npiwCY809<pMQ;O$wq$TkAMa8ehZYC-rymV{jfpJ
zjgsSMI$t7M9tEFwK2x+0fsT7{kUdO!x*Ue1q-ZUgDmJ_!gXTWB!DRtm9-jdT(;1t>
zszstJ!RFh#xsds6h`ouRzf$;H)kh$o`|&ytH8l5hySdp_9<qz4q<GS}i>YwadAq$}
zc<$btIjR1V1NzM!+6vcim{~xMtTcU#ao=_z>;2XaY3VD=pP`nj;m1*qqBppg*W1W?
zzel?84M-TL<5M$mYN?q@d?`Y!_aG8ed{UlLx07S7);#Vl%%)HJ+|md=)dPL_aLZyk
z?D&#-A*VJTnu^XY5f%B8i!^1}XKY*!`=Z2h>C}oi{vFdkb)$p-)-{&+$6FikbLab*
z>Ov<n5Vv-|yt}enO$er0krut3zTzP7v0vjk{~hshB5=8_q1{(R@B2$CDdw;+ru{sp
z^waz22~tf?CKDsHyJaV4)W#k`KYp58E*rCJZ=1I}a|?^yRDY)PoS^>fOC-~N+DZjs
z)E3vc(wmq*FNlZ8u2@pvE?C*tyIzxu@9T6loOnQ>f|>Mq$WNSN^37iH!N)LhLnEp^
zJdJc}3OYO&1LnICUpv`d7mr8S#|irg=b0GNGQUy*eXHS#u<?dR(8KohIMP=x;^~>b
zz@;U8IrCB-UPVRFx^jj_&`LBRrTT&!m_~aMnJaeWlr|D;I1NedfNcLQy}t%MmAqKg
zF)SY7G)ij;##ejX;O@PX5*^by+~5z>W{*OeV60(7^B{aBUcs{~!)bAZM#rnTAr-(n
z*U(U{o)ZjndoH9^t!}nyIk4T9V{;>*H(}S3wi?QM%Q5_x;zT{D|1I`&a_Gg;r`-|2
zS`<p0rUGuptYBkAYjk6`obZ>C@x~nj9ldE^e?f^7hlr!EO4tk2jI0x;wyy~DI_03y
zvrL<q0;-!gj@Vus&M$dF)#g)~O_jg%RM|X>V2TlFZ@dnRtD3SIkQgrP==Q5-z;x^9
zb)=QZO{n1;X*5TJhyK#fbV?$~;9nSO_iUv1zVR!gC{H^LV_Gv<+jZ8-zM1OS{n8c)
z4;PJ<?PkFb(A5@z7W5R_IxBnX1(|ePb31bi9CfD7=}h+Ly{=bfhT9I)HiaXe*s4y{
z8FX!H+&-qAf39mQnt<2V>c*o~6IryhwSb<{g_oO7$|P8rKSm}J0#;D4bgBuJi?A!<
zo#$0z#dt~_8#HK#c$lnm+3`+v<V}Wo9|-zq%*l6c!u^j)6$!td)zpN&IGVAl-JQd;
zs_i(^obv+9heU$dZE~sE<OC`Dn!74R0*t>x;3uL^QY<uRxS_27a<;Q@IbI5Twte3q
zf&vMK7GbW6De&Fkz{9i909}p(kQ_%KeWvxEuYTIFGeYn*43L95)%l>1daUOzRG;a|
zUv)u|@!y~?Q65ZyMBb`nTJ<{CSI`&Hv{w;;vmLxl6`#*%>`OtnRhYj73eHd&r_2oe
z$+JkP{U^@?i-IACJO)H!BmV&Sp#RX8e?$00&hYCl?1siQ+c$u7H9P#%m68IN<2r>D
z%?3=IXHQ+*`71mk_d^bYOLN__b)4XO+8V)g`5VLSxkp~h;4hoB>vtFn)-HcK-<wH|
zOis2cJTif+b=&AI4GoX+=#L9`S++ORI<}woDZ1-qa48wbN6?Wmhqq?VxBVLW(EX2s
zV1!G_9ah%*eRri*+=TgR^BC`5Unzk@-95#l7b91y<d19axJ73A*K_gVmA;WB+C8Mq
zEWar0u-C@w)@Z%)Tv;_VD&d-J;M=C`&|IMBsGe%z)BX~k<gWLky36@0-?9oO=uC@w
zHCJDhGF1h*vO3t}+30j7>#*-Ug8o$QfyNHC3x)qu?w>4?#5(2BF6Pb{N1TH*iGm#v
zQ8ko3kwU8KX&Gqf^UI-aP<pP~L^Ag)ABnQZ*m(kYeq;eidAvU|?NC-k)&~AnQsxKA
z6a)dmK!6}r1PlPdMIitX7y|yuFO_g8JB+zB*2)eI03Otnb}=WhRZ%eFAW0e@DJ=+w
zzzzhmC`Uy!#>$#VXo<}nh_rENdp!W+M}1O4@i0M}A#vNF!2l9>{GCgZ$o1h?`@vvI
zWq&m1dJ}iRqIHODm6UfNl|i|n4`}*-(+tMh1t)8baz0dmD(Yt%1pdLp|E_N0@DGMW
z(z-mBc(IGYS^<QwW3bX#7tEpHpy%rt3!JsfPqI#WME?FoKuEU&hhGth2!Iq0)Bo>d
zm?#K93I`Vo#ESt3T`Y!lj}16@+<#va(0?vk4tYBO^q-4|e|!FaXZT<!aSQxz5PEcM
zaXLL0K5pKgY2{2*_)HOFMnM)cu4}?}?)W5H_Vfuq_WL<XM$lJ4Ir3|O)0r5~*pr;0
z^^Y@T<U*mbW=r=@bEH#+nZce=u@x9%s80xr$d{43rHPNw%*`9#$lr6_NEY2pUKaOS
zF0ET*0N>+DWIAmjs9(jd=#Iv7frmR0#x>S+&lau=UG_5@tg%+I_n4Wa`WWXFRyN-f
zxF$1z5ioyqJhF)P^;%}B@)ytgJ{_SOC1T&8HOS0kelc-6f(hK;P3pgAx(lZ~e_^OA
z8b`*;gV3+>Ms0Y^D1ddk?%}u+X{YazFQi1L#1siR=BrFrT5!(6o;-dTAL$wiSkT`r
z`TWVpTl9)}Q#_3xuIglBe7obDx$lb;QxVb@8qJ9ORJbh-`DSAEYyp^O`JRUfU0rfn
z^8FW6oi3J3mo+6qZ+5e7aM@(gW$0??M;lyjb#tMDb&kAd0gHv7wJdTh#HB`rPTiWn
zn#7)wfFxI0e<CtRlc9sFU@*tu0rk#lWLoCc*hGZpZt8O5HDP($x;aedoNlv2xcssb
zgx&U>?z}o^g0ttt(d0%&79IH(74D7@5iyQ@o{&-Lwz8Oc&iFf;^0uvFE)l@uS+zm-
za^-1pygfnl?dLlsaW7^;JT6T3kQZ{-Pu)l>=YjP#Gvc8Q(fj=8^R;)MYv9>O(3$6w
zWCMnVya;Pvbq38nH)=K{3Zr6GFxec_rxB-``9dz*!YCO>BHGGQBF2;SgPw;YVOJ#u
zv-@|yQKtDl<oX&H5XoWJ9r{(SP(==YJ(oP=T13`sQPZ23)OeJK&$~qMkatOA@>$}n
znH-=u{Vg6Qv^`d{Druqd4H+w-?~&7GkPk!aD71I7w#WxO<kBiOX=3n^mN4q(?HIPR
zg9>YKhgzQt>=7NXjb3168(hX&pXf?Um*%$_?2_&98$j2a#?MSreivpaORnc>3%zCI
zUy_<?facSVS8%Q4S<K9Nb}D(>G$z|Q_<e#dUHG1haz|{AHeYA}KW_}`7@6SigU27M
z-aOW{f9G&Z9$J|O?ze!QW$3dIWQpgG*QHHzfAdk?-Elc3m*z^=p3(yz?v_)d-<J2r
zSKh%r-^HkNeoTGImC<*#_I*~e{Nz+v(?n^_)b*`>T5YVg{$|#P3&syT79JG`Yca{h
zPR3c&NeXEyWhKsa<|hnjd~gY&rW(5>a^+o9<7pv}72XLN!l=FXVxt0e^79o`7w31j
z3FG6wVQJzKb%d3p6N`x5taHndkMEiiySTPhk7qZ2!I6FR;a0C>ZW8xIG<qaCfiL+|
zj;T{8o4uTBy0oxjDZcj#AvE2z(BW#A_c^brBp0!bd~&75gM+5dYByrVh~U7GLjCe%
zRH3OA&SIk6`(+EFbGA!i`;()Xi6zU;-O!cu6Y=4uz}xS)7$*Q3DNe6~>H7w@<&k#2
z)e)et%Srj0&&_@P2RHo+H`@ef>uZl~_~C29XE^#BJR+#kyAM|EPD`zfCyrFyz8o-O
zf4gP~nRKa|bMA(dMB5f9BX)&D$_<=4_^C&I$~>4}iUL)gU>7;2M5y2%zQsI21~;s*
zoQ*qIfh}3@rLZgc;z7=8F2S@itH4N2#Y&y6!0zEudR<E5TvE-JGz*ozO&=9V1lHb@
zG+2@=4U@7a-mqB<X;2OJH+zijp|+0_zBhc}1SefaHTVeCu-(})))#)WeXjSdT48C&
zY{Mp_?efN4dAOI)7Hh`ck|50wF6urtwZWREk;_3E*B?Gvu=5Vqe5b$E$OqSZGKM9D
zB5cO>S(~0A@)&i)9UyU&V@BbPwK6r8$K64E3nhwI6H4w=-xM%wwQ6M!4n=%+G#8p+
z4ljnZywk#YvY>e@B_(A?QzM5Mp0~6-r+W-N%N3NRQuI3ch$a1IM=4{eab+NA%~GY^
zV%YA}WdcQFVm(hPc5eJiLh4jUm!RsJ8Q+90wQ5M(J<vdFPs{|5T~j6_kC}I@(}Y}I
zE$B`Njn;;o)aCHaS+Wz7xeUwo2!cN0togC+AOs=2Vm;vqGSYdjgAQ5c=p%x>bzkar
z)*2&+F+=K1XM<$33rZjRjMb72&M3PEvUpk;902sVZ%S1GYL2|yH*jl=)7Wala44(z
zTHw-aSoqQK;!Ji0-1HVTMY=D`06Uv_fB@C@TgtEI76d0(Ht=x^U=ewG@uH3?@&zKx
z3V^3JTSsj*zH0vxqG!rha4R!t4DB&IH`w49RxW-~2pJk^fs9Vz0wo_s$Y_9bCr@Td
z>p$HMGaPIUMBQaTww{Jzp+UP+wA;^Uwq8eX2)7TVz55rWcj!7Mo`N7a6#5J59r`hT
zb18#<c@zGpPx;3EYc_9y6oH#p0^=ZI^-8^L8c&i0wi_}f@0h>KMX@tC8ccrGl|YeS
z=m*qnCR)we?hk4=r%8zp9))aOjc^L#HwvK6zM6-9bs{OUXxL3e33E5t{w-p2GQ-B`
z1Dra(l{wkOm}RBl$W`B`vXs#Jxg9YHWW&SGi&mKwvGZb%vr|>@n2&AYX=l9WQfAp4
z=<D}bOpRo$l})AC2WB0W2<*%cHOgakP8G(_(?;)PU+SJ+iu^QQ)HtH!sy*D~J@Zxl
zitIqF!Rmu+4**^PSGSDyLNVDb-%h}gju!u-#zQPfR3jMtA1#t#)t?aYzXE1O!)uz?
zRR1pkGxPxEk<j7)M|k-Fi~S9p{qBAFZ-`k|NscrRQuYsM{vXu*@9H5|(Drm8LUtvr
zr2|P1q%Et3w!#ou9g$*46a8=K19CwEdg{&=XlD{k=25aBasmv_^H-L(tD~bG+MdJ|
z4rstnU(!Dz_b>mM@O6L@kO-+ofJ8qV5iZ}j@tdFN-xvO1m9&3x1L72a5RU&f#X~F)
z5I!8WpyEMWKd6lbibzq2IwJvm&;d*N;d%QFC;xaIggB+2{yq{V{`<xx`TKqlG!={m
zsigyM@ymzjN^<}GHbKxK0Vio&!`Z>Y)tvZ}36D7n<Lm$c34ug}fB+tA9L~{2Oql4+
zBucHEQI6Iaa~B~8XDi+xY)_W>3JQ@n0wj>~NF)#l6$JuC<cUEB2!un3F)4tE{{x9J
z3`k^vKp=#e1{2Htiitv!9E>2AAqF_~XCTT*Z9t@ndBnC!LF9k6PwJak4o+-PgxD!q
z^uPftd@xLm16GdYu;q~x0|UWOAQXrIAz&~VR1gT`1_F71(+!cS{!_cMC?ZRBusT?@
z15N+*rT%9{Je<*%<U~&@h@3d`pC5n-3<iM#ECD}d2)GDQ?W7L?dnf~mfQXyzA2KNH
z4;c^$B5s0zmV*%O|KDXW81Roi5F&rdKnUm`<)8==q9Ocydr$=8k8&`gllY(IU|<Mw
z>;Anik@FGx+}~wzIP70!@IU5@03wLX@b|h15b%$>MDF{C4iJbx^&$!)Jz9tD;ha&#
zI|1i|H?FiXx6q_@BiR=%2L~MBVEwfY(j=P%ICxeL4514S<%~O6X;BayM9#$}uZ|@D
EKSRIlHvj+t

literal 0
HcmV?d00001

diff --git a/make-talk-06/equation-for-a-plane.svg b/make-talk-06/equation-for-a-plane.svg
new file mode 100644
index 0000000..b54ac91
--- /dev/null
+++ b/make-talk-06/equation-for-a-plane.svg
@@ -0,0 +1,353 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="91.380798mm"
+   height="75.866676mm"
+   viewBox="0 0 91.380798 75.866676"
+   version="1.1"
+   id="svg5"
+   inkscape:version="1.1.2 (0a00cf5339, 2022-02-04)"
+   sodipodi:docname="equation-for-a-plane.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview7"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:document-units="mm"
+     showgrid="false"
+     inkscape:snap-global="true"
+     inkscape:zoom="1.7554515"
+     inkscape:cx="158.93347"
+     inkscape:cy="152.66728"
+     inkscape:window-width="2554"
+     inkscape:window-height="1365"
+     inkscape:window-x="1920"
+     inkscape:window-y="32"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1"
+     fit-margin-top="1"
+     fit-margin-left="1"
+     fit-margin-right="1"
+     fit-margin-bottom="1" />
+  <defs
+     id="defs2">
+    <marker
+       style="overflow:visible"
+       id="Arrow1Mstart"
+       refX="0"
+       refY="0"
+       orient="auto"
+       inkscape:stockid="Arrow1Mstart"
+       inkscape:isstock="true">
+      <path
+         transform="matrix(0.4,0,0,0.4,4,0)"
+         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
+         d="M 0,0 5,-5 -12.5,0 5,5 Z"
+         id="path3171" />
+    </marker>
+    <marker
+       style="overflow:visible"
+       id="Arrow1Mend"
+       refX="0"
+       refY="0"
+       orient="auto"
+       inkscape:stockid="Arrow1Mend"
+       inkscape:isstock="true">
+      <path
+         transform="matrix(-0.4,0,0,-0.4,-4,0)"
+         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
+         d="M 0,0 5,-5 -12.5,0 5,5 Z"
+         id="path3174" />
+    </marker>
+    <marker
+       style="overflow:visible"
+       id="Arrow1Mstart-3"
+       refX="0"
+       refY="0"
+       orient="auto"
+       inkscape:stockid="Arrow1Mstart"
+       inkscape:isstock="true">
+      <path
+         transform="matrix(0.4,0,0,0.4,4,0)"
+         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
+         d="M 0,0 5,-5 -12.5,0 5,5 Z"
+         id="path3171-7" />
+    </marker>
+    <marker
+       style="overflow:visible"
+       id="Arrow1Mend-5"
+       refX="0"
+       refY="0"
+       orient="auto"
+       inkscape:stockid="Arrow1Mend"
+       inkscape:isstock="true">
+      <path
+         transform="matrix(-0.4,0,0,-0.4,-4,0)"
+         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
+         d="M 0,0 5,-5 -12.5,0 5,5 Z"
+         id="path3174-9" />
+    </marker>
+    <marker
+       style="overflow:visible"
+       id="Arrow1Mstart-2"
+       refX="0"
+       refY="0"
+       orient="auto"
+       inkscape:stockid="Arrow1Mstart"
+       inkscape:isstock="true">
+      <path
+         transform="matrix(0.4,0,0,0.4,4,0)"
+         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
+         d="M 0,0 5,-5 -12.5,0 5,5 Z"
+         id="path3171-8" />
+    </marker>
+    <marker
+       style="overflow:visible"
+       id="Arrow1Mend-9"
+       refX="0"
+       refY="0"
+       orient="auto"
+       inkscape:stockid="Arrow1Mend"
+       inkscape:isstock="true">
+      <path
+         transform="matrix(-0.4,0,0,-0.4,-4,0)"
+         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
+         d="M 0,0 5,-5 -12.5,0 5,5 Z"
+         id="path3174-7" />
+    </marker>
+  </defs>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(-90.233096,-82.14376)">
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 95.296838,117.29057 44.444672,21.0717"
+       id="path1542" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 98.771783,115.9596 43.985527,20.63009"
+       id="path1723" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 101.90521,115.09071 44.06612,19.8567"
+       id="path1880" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 104.76977,114.16954 44.41043,19.21387"
+       id="path1925" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 107.91953,113.17247 44.62453,18.89658"
+       id="path1970" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 110.66927,112.14685 44.61865,18.23656"
+       id="path2015" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 113.44002,111.33041 44.77696,17.59251"
+       id="path2060" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 118.71572,109.51873 44.70464,16.6627"
+       id="path2105" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 121.49741,108.56914 44.48611,16.32001"
+       id="path2150" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 124.06615,107.90233 44.56618,15.75574"
+       id="path2195" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 126.62187,107.15062 44.54742,15.26553"
+       id="path2240" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 128.93498,106.43099 44.26206,14.83528"
+       id="path2285" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 131.09273,105.69858 44.32282,14.50145"
+       id="path2330" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 133.55296,105.0285 44.00837,13.9754"
+       id="path2375" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 176.75733,116.81264 -44.58176,21.7271"
+       id="path2420" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 173.67979,115.80344 -44.86401,21.02052"
+       id="path2465" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 170.40811,114.67457 -44.49783,20.37135"
+       id="path2510" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="M 167.17014,113.86553 122.2734,133.6049"
+       id="path2555" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 164.15016,112.85883 -44.7425,19.23496"
+       id="path2600" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 161.48112,111.98014 -44.80426,18.57984"
+       id="path2645" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 158.56396,111.27691 -44.84657,17.79151"
+       id="path2690" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 153.06842,109.46954 -44.98047,16.89263"
+       id="path2735" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 150.25712,108.65486 -45.20066,16.53401"
+       id="path2780" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 147.7447,107.8453 -44.6596,15.91747"
+       id="path2825" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 145.17339,107.04885 -44.54975,15.58854"
+       id="path2870" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="M 142.73458,106.30876 98.229514,121.54459"
+       id="path2915" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="M 140.11354,105.58182 96.032216,120.23438"
+       id="path2960" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#bfbfbf;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="M 138.41447,104.822 93.511541,119.14933"
+       id="path3005" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 91.58385,118.28188 44.30894,22.02331 44.25996,-22.49722 -44.23757,-13.71951 z"
+       id="path869" />
+    <path
+       style="font-variation-settings:normal;opacity:1;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.4;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker-start:url(#Arrow1Mstart);marker-end:url(#Arrow1Mend);stop-color:#000000;stop-opacity:1"
+       d="m 110.34487,108.64221 57.95165,21.52107"
+       id="path3163"
+       sodipodi:nodetypes="cc" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.4;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;marker-start:url(#Arrow1Mstart);marker-end:url(#Arrow1Mend);stop-color:#000000;stop-opacity:1"
+       d="M 160.64718,108.77196 103.1539,130.44349"
+       id="path3666"
+       sodipodi:nodetypes="cc" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.4;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;marker-start:url(#Arrow1Mstart);stop-color:#000000;stop-opacity:1"
+       d="M 135.89305,150.8529 V 109.72823"
+       id="path3901"
+       sodipodi:nodetypes="cc" />
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:#ccccff;fill-opacity:1;stroke:#0000ff;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 96.367086,120.64217 -3.364766,1.73469 17.48444,5.3153"
+       id="path4107"
+       sodipodi:nodetypes="ccc" />
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+       x="168.92029"
+       y="133.64088"
+       id="text6054"><tspan
+         sodipodi:role="line"
+         id="tspan6052"
+         style="stroke-width:0.264583"
+         x="168.92029"
+         y="133.64088">+x<tspan
+   style="font-size:65%;baseline-shift:sub"
+   id="tspan8908">1</tspan></tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+       x="102.32942"
+       y="107.77144"
+       id="text10050"><tspan
+         sodipodi:role="line"
+         id="tspan10048"
+         style="stroke-width:0.264583"
+         x="102.32942"
+         y="107.77144">‒x<tspan
+   style="font-size:65%;baseline-shift:sub"
+   id="tspan10046">1</tspan></tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+       x="93.990906"
+       y="133.89154"
+       id="text10786"><tspan
+         sodipodi:role="line"
+         id="tspan10784"
+         style="stroke-width:0.264583"
+         x="93.990906"
+         y="133.89154">+x<tspan
+   style="font-size:65%;baseline-shift:sub"
+   id="tspan10782">2</tspan></tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+       x="160.82378"
+       y="108.01045"
+       id="text10894"><tspan
+         sodipodi:role="line"
+         id="tspan10892"
+         style="stroke-width:0.264583"
+         x="160.82378"
+         y="108.01045">‒x<tspan
+   style="font-size:65%;baseline-shift:sub"
+   id="tspan10890">2</tspan></tspan></text>
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:#9999ff;fill-opacity:0.5;stroke:#0000ff;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;stop-color:#000000;stop-opacity:1"
+       d="m 126.77268,132.64311 13.57079,4.12554 39.92962,-29.50753 -45.8974,-6.21414 -25.44284,13.11696 z"
+       id="path4127"
+       sodipodi:nodetypes="cccccc" />
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+       x="132.70564"
+       y="85.797859"
+       id="text11002"><tspan
+         sodipodi:role="line"
+         id="tspan11000"
+         style="stroke-width:0.264583"
+         x="132.70564"
+         y="85.797859">+y</tspan></text>
+    <text
+       xml:space="preserve"
+       style="font-size:4.23333px;line-height:1.25;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.264583"
+       x="133.25342"
+       y="156.12987"
+       id="text11108"><tspan
+         sodipodi:role="line"
+         id="tspan11106"
+         style="stroke-width:0.264583"
+         x="133.25342"
+         y="156.12987">‒y</tspan></text>
+    <path
+       style="font-variation-settings:normal;opacity:1;vector-effect:none;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.4;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;-inkscape-stroke:none;marker-end:url(#Arrow1Mend);stop-color:#000000;stop-opacity:1"
+       d="M 135.89305,109.72823 V 89.347329"
+       id="path11470"
+       sodipodi:nodetypes="cc" />
+  </g>
+</svg>
diff --git a/make-talk-06/main.tex b/make-talk-06/main.tex
index 68f3f82..2665660 100644
--- a/make-talk-06/main.tex
+++ b/make-talk-06/main.tex
@@ -58,6 +58,19 @@
 % START START START START START START START START START START START START START
 
 \begin{frame}{\only<1>{Equation of a line (fitting $a$ and $b$ to measurements $y$ versus $x$)}\only<2>{Equation of a plane (height $y$ versus 2D coordinates $x_1$ and $x_2$)}\only<3>{Equation of a hyperplane (N-dimensional)}\only<4>{General linear transformation: many inputs, many outputs}\only<5>{Pass through function $f$ to make it non-linear (more on that later)}}
+\vspace{0.25 cm}
+\begin{onlyenv}<1>
+\begin{center}
+\includegraphics[width=0.4\linewidth]{equation-for-a-line.pdf}
+\end{center}
+\vspace{-1.5 cm}
+\end{onlyenv}\begin{onlyenv}<2>
+\begin{center}
+\includegraphics[width=0.4\linewidth]{equation-for-a-plane.pdf}
+\end{center}
+\vspace{-1.75 cm}
+\end{onlyenv}
+
 \begin{columns}
 \column{1.1\linewidth}
 \renewcommand{\arraystretch}{1.5}