y-3=8/3(x+20)
y=8/3x+160/3+3 y=mx+b
our b is 169/3
mx is 8/3x slope is 8/3
formula of perpendicular is -1/m
-1/8/3=-3/8 is the slope of perpendicular line
we have:
m=-3/8
x=-2
y=3
let s put it into y=mx+b
3=-3/8(-2)+b 3=3/4+b b is 9/4
equation:y=-3/8x+9/4
