Answer:
Any line with slope -4. Example: y = -4x + 3
Explanation:
A perpendicular line has a negative reciprocal slope. If the slope is 4, then the perpendicular slope is -1/4. Using the slope intercept form y=mx+b, the line y=1/4x+2 has the slope 1/4. The negative reciprocal slope is the opposite value and the fraction flipped. The perpendicular slope is -4. Any line with -4 slope is perpendicular. Example: y = -4x +3