Question

If shortest distance of a line x – y = 3a from a point (a, b) is |a| then b/a must be root of equation (a, b, ∈ Ro)

(A) x2 + 4x – 2 = 0

(B) x2 + 4x + 2 = 0

(C) x2 – x – 1 = 0

(D) of these

Answer 1

Correct option (D) (B) x2 + 4x + 2 = 0

Explanation:

shortest distance must he perpendicular distance