(y+1)/(2+1)=(x-1)/(-3-1)
(y+1)/3=(x-1)/-4
-4(y+1)=3(x-1)
-4y-4=3x-3
-4y=3x+1
y=-3x/4-1/4
y=-0.75x-0.25
(y+1)/(2+1)=(x-1)/(-3-1)
(y+1)/3=(x-1)/-4
-4(y+1)=3(x-1)
-4y-4=3x-3
-4y=3x+1
y=-3x/4-1/4
y=-0.75x-0.25