Could you check this

Question

Directions: Given the coordinate of one endpoint of AB and its midpoint M, find the coordinates of the other endpoint.

1. A(0,9), M(2,5)
X 2-(0)= 2
Y 5-9= -4
M (2,5)+(2,-4) A= (4,1)

Answer 1

correct, except B=(4,1), I assume that was a silly typo.