Question

Two lines are perpendicular. The equation of the first line is y = 4x + 1. Which of the following cannot be the equation of the second line?
A)
y=-1/4x-2
B.
x – 4y = –2
C.
x + 4y = 2
D.
8y = –2x – 5

Answer 1

Its seems to be B, as B rearrange is y = -x/-4 or x/4, while C rearranged is y = -x/4, which is the gradient of the perpendicular.

Answer 2

Ohh thank you, so B right? :)

Answer 3

Yes