Midpoint formula
The midpoint formula is a formula used to find the halfway point between two coordinates on a graph.
Try to imagine two points on a graph and an imaginary line that connects them. The midpoint formula is used to locate the point at the middle of the imaginary line.
Given two points (x_{1}, y_{1}) and (x_{2}, y_{2}), their midpoint M (a coordinate) is:
Notice that you are taking the average x and yvalues of the two coordinates. This is because the midpoint is located at the vertical and horizontal halfway points between the two points.
Example


Midpoint at (2, 1) 