Question

Find an equation of the line. Write the equation using function notation.

Through (2, -20) and (-8, 30)

Answer 1

\[y-y_{1}= (\frac{y _{2}-y _{1} }{ x _{2}-x _{1}})(x-x _{1})\]
y+20=m(x-2)
\[m=\frac{ 30+20 }{ -8-2 }=-5\]
so y+20=-5x+10
5x+y+10=0

Answer 2

thx!