Question

The equations ax +b = 0 and cx + d = 0 are consistant if
(A) ad = bc (B) ad + bc = 0 (C) ab –cd = 0 (D) ab + cd = 0

Answer 1

Step-by-step explanation:

The equations ax +b = 0 and cx + d = 0 are consistant if a/c = b/d

=> ad = bc (option A)