Hi, A(2,4), B(-4,-1), m = 5/6 D( p, q) C(-1,-7) m = 5/6 = (q+7)/(p+1) q + 7 = 5 p + 1 = 6 q + p = 3 p = 3-q (3-q) + 1 = 6, q = -2 and p = 5