Question 669983
(0,-3) slope 4

The perpendicular line will have a slope of (-1/4) because (m1*m2=-1) if m1 & m2 are the slopes of the perpendicular lines

Plug point and slope in y=mx+b to find the Y intercept

-3=(-1/4)*0+b
b=-3

the equation will be y = (-1/4)x -3