The slope of a line perpendicular to y= -1/4x - 2 is going to be the reciprocal of it. So it would be 4x. Then you'd need to find b.
y = mx+b
(Plug in slope, y-coordinate and x-coordinate)
-3 = 4 (-2) + b
(Simplify)
-3 = -8 + b
(Add 8 on both sides)
5 = b
The final answer would be y = 4x + 5