If the point of intersection is (1, -2), it implies that x = 1 and y = -2 when the two equation are solved simultaneously. ∴ substitute x = 1 and y = -2 in any of the equations 2y - k x + 2 = 0 2(-2) - k(1) + 2 = 0 -4 - k + 2 = 0 -4 + 2 = k -2 = k