A line passes through the point and makes an angle of with the positive -axis
MATHEMATICS · Single correct · A Level · Mathematics · Coordinate geometry in the (x y) plane · Coordinate geometry in the (x y) plane
Problem
A line L1 passes through the point (1,−2) and makes an angle of 135∘ with the positive x-axis. Which of the following is the equation of the line perpendicular to L1 and passing through the same point?
(a) y=−x−1
(b) y=x−3
(c) y=x+3
(d) y=−x+1