Answer: N = (-10,6)
Step-by-step explanation: skipping any math you can graph given points. A midpoint means that this point is equidistant from each point (splits the segment equally in two parts) ex: segment AM is equal to segment MN.
Therefore, when graphing we see that point A to point M is up 5 grid squares and left 3 grid squares. We can simply use this method (up 5, left 3) from point M to find point N.