Respuesta :

midpoint formula : (x1 + x2) / 2, (y1 + y2) / 2
(-2,-2)....x1 = -2 and y1 = -2
(7,-5)...x2 = 7 and y2 = -5
now we sub
m = (-2 + 7) / 2, (-2 +(-5) / 2
m = (5/2, -7/2) <==