Respuesta :

Step-by-step explanation:

the coordinates of a midpoint are

x = (x1 + x2)/2

y = (y1 + y2)/2

with (x1, y1) and (x2, y2) being the endpoints.

so, our midpoint here is

((-7 + 3)/2, (3 + -7)/2) = (-4/2, -4/2) = (-2, -2)