Question

If M (-2, 5) is the midpoint of AB and the coordinates of A are (4, 7), what are the coordinates of B?

Answer 1

`(-8, 3)`

Explanation:

The coordinates are ordered pairs with the `x` value listed first.
The change in the `x` position is `4- -2=6`
The change in the `y` position is `7-5=2`

Since the midpoint is halfway between A and B, the change will stay the same, so `x` is `-2 - 6 = -8` and `y` is `5-2=3`