Answer:
(1,-3)
Step-by-step explanation:
Using the formula given (x1+x2/2, y1+y2/2), we plug in the midpoint values and the values of A:
-5+x2/2, 7+y2/2 = -2,2
After this, just do a simple guess and check to see if you can get the midpoint value. When done, you should get (1, -3).
Hope this helps :))
