Question

A circle has a diameter with endpoints of (-2, 8) and (6, 4). What is the center of the circle?

Answer 1

2,6 should be correct

Answer 2

The midpoint of the two points will be the center of the circle.  The midpoint is simply the average of the endpoints coordinates...

((6-2)/2, (4+8)/2)

(2, 6)  is the center of the circle.