Hi Reply Previously Posted A(1,-3) and B(-3,5) Midpoint is P(-1, 1) and m = -8/4 = -2 (Line segment AB) the equation of the perpendicular bisector: y - 1 = (1/2)(x + 1) y = (1/2)x + 3/2 Green y = x - 2 Blue P(7,5) is the same distance from P(A) and P(B) D =AP = sqrt(36 + 64) = 10 Wish You the Best in your Studies.