Answer:
y=-1/4x-4
Step-by-step explanation:
Given slope: 4
Perpendicular slope: -1/4 (change the sign, and flip the slope)
y=mx+b
Plug the order pair into the equation
-1= -1/4(-12)+b
-1=3+b
subtract three on both sides to get b by itself
b=-4
Therefore, y=-1/4x-4