Answer:
Step-by-step explanation:
(3 , 12) ; (8 , 32)
Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]= \frac{32 - 12}{8 -3}\\\\=\frac{20}{5}\\\\= 4[/tex]
m = 4 ; (3,12)
y - y1 =m(x -x1)
y - 12 = 4(x - 3)
y- 12 = 4x - 3*4
y -12 = 4x - 12
y = 4x - 12 +12
y = 4x
