Three lines are given as follows: L₁: L₂: L₃: Which pair of lines is (are) perpendicular?

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

Problem

Three lines are given as follows: L₁:

2x - 3y + 4 = 0

L₂:

4x - 6y - 5 = 0

L₃:

3x + 2y - 7 = 0

Which pair of lines is (are) perpendicular? (a)

(L_1, L_2) \text{ only}

(b)

(L_1, L_3) \text{ and } (L_2, L_3)

(c)

(L_1, L_3) \text{ only}

(d)

(L_2, L_3) \text{ only}