Which one of the following pairs of straight lines are perpendicular to each other?

MATHEMATICS · Single correct · CBSE · Mathematics · Straight Lines · Straight Lines

Problem

Which one of the following pairs of straight lines are perpendicular to each other? (a)

x+2y=4

and

2x+y=5

(b)

3x+4y=7

and

4x+3y=5

(c)

2x+y=1

and

x-2y=3

(d)

4x+2y=6

and

2x-y=1