Question 1087454
<pre><b>
{{{m=(y[2]-y[1])/(x[2]-x[1])}}}

{{{m=((-15)-(-16))/((-7)-(19))}}}

{{{m=(-15+16)/(-7-19)}}}

{{{m=1/(-26)}}}

{{{m=-1/26}}}

{{{y-y[1]=m(x-x[1])}}}

{{{y-(-16)=expr(-1/26)(x-(19)^"")}}}

{{{y+16=expr(-1/26)x+19/26}}}

Multiply through by 26

{{{26y+416=-x+19}}}

{{{x+26y=-397}}}

{{{drawing(800,17600/31,-10,21,-19,3, circle(19,-16,.1),locate(19,-16,"(19,-16)"),graph(800,17600/31,-10,21,-19,3),line(-33,-14,45,-17),

circle(-7,-15,.1),locate(-7,-15,"(-7,-15)"))}}}  

Edwin</pre></b>