Question

The midpoint of AB is M (-2,5). If the coordinates of A are (1,7), what are the coordinates of B?

Answer 1

B(-5, 3)

Explanation:

(1 + x)/2 = -2

1 + x = -4

x = -5

(7 + y)/2 = 5

7 + y = 10

y = 3

B(-5, 3)