Answer:
Explanation:
All lines perpendicular to the line y = -¹/₄ x - 1 will have a gradient that is the negative reciprocal (4).
∴ any line with a gradient of 4 would be perpendicular
examples include but are not limited to:
y = 4 x - 1
y = 4 x - 10
y = 4 x - 11