Can someone help me

Question

find the other endpoint of the line segment with the given endpoint and midpoint. Endpoint: (-9,7), midpoint: (10,3)

Answer 1

-9 to 10 is an increase of 19, add another 19 to get 29 for the other end point x coordinate

7 to 3 is a decrease of 4, subtract another 4 to get -1 for the other end point y coordinate

(29,-1) is the other end point