Respuesta :

midpoint formula : (x1 + x2) / 2 , (y1 + y2)/2
(4,0)...x1 = 4 and y1 = 0
(0,-2)...x2 = 0 and y2 = -2)
now we sub and solve
m = (4 + 0)/2 , (0 - 2)/2
m = 4/2 , -2/2
m = (2 , -1) <===