Question

Through: (4, -3), perp. to y=-2x + 1

A. Y=1/2x-1/2
B. Y=-1/2x-5
C. Y=1/2x-5
D. Y=-5x-1/2

PLEASE HURRY

Answer 1

Explanation:

y = -2x + 1. => Slope = -2

Then the perpendicular line will have a slope of -1/(-2) = 0.5.

We have y = 0.5x + c.

When x = 4, y = -3.

=> (-3) = 0.5(4) + c, c = -5.

Hence the answer is y = 0.5x - 5. (C)