Section 12-3
Midpoint of a Line Segment
Suppose you are given two points in the plane (x1, y1) and (x2, y2), and asked to find the point halfway between them. The coordinates of this midpoint will be:
An easy way to think about this is that the x-coordinate of the midpoint is the average of the x-coordinates of the two points, and likewise with the y-coordinate.
Example:
Find the midpoint between (–2, 5) and (7, 7).
Use the formula. The coordinates of the midpoint are:
Simplify.
