Question

Point A is at (3,-8) and point M is at (5,-2.5).

Point M is the midpoint of point A and point B.
What are the coordinates of point B?

Answer 1

b 7,3

Explanation:

Answer 2

B(7, 3)

Explanation:

The formula for the unknown endpoint is ...

B = 2M -A

B = 2(5, -2.5) -(3, -8) = (2·5 -3, 2(-2.5)+8)

B = (7, 3)