Question

If M (3,8) is the midpoint of AB and one endpoint is located at (9,0) , find the coordinates of the other endpoints of the other endpoint, B

Answer 1

(9+x)÷2 =3 , x= 6-9 so, x = -3

(0+y)÷2 =8 , y=16

B ( -3 ; 16 )