posted by Abigail .
The midpoint of line segment AB is (1,2). The coordinates of A are (-3,6). Find the coordinates of B.
I know how to figure out midpoint, but I'm having trouble figuring out how to do this problem. Any help would be appreciated. :)
The midpoint has an x-coordinate that is 4 larger than point A's. It has a y-coordinate that is 4 points less than point A's.
Apply the same changes to the midpoint coordinates to get the location of B.
The x-coordinate will be 1 + 4 = 5
You do the other one.