Question

The midpoint of segment CD is M (9, 8). One endpoint is C (5, 15). What are the coordinates of the other endpoint D?

Answer 1

Explanation:

(5+ x)/2 = 9

5 + x = 18

x = 13 for D

(15 + y)/2 = 8

15 + y= 16

y = 1

(11,1) for D