Question

The midpoint of overline AB is M(7,-7) . If the coordinates of A are (8, - 6) , what are the coordinates of B?

Answer 1

Measure the distance between the two end points, and divide the result by 2. This distance from either end is the midpoint of that line. Alternatively, add the two x coordinates of the endpoints and divide by 2. Do the same for the y coordinates.