Number Line Midpoint Calculator

|-|-|-|-|-|-|--|-|-|-|-|-|-|<--- Enter 2 of the following: (Point 1, Midpoint, Point 2)

A line has an endpoint of 2 and a midpoint of 5. We need to calculate Point 2
The formula for calculating endpoint 2 of a line given endpoint 1 and the midpoint is:
Point 2 = (2 * Midpoint) - Point1
Evaluating using our inputs of Midpoint = 5 and Point 1 = 2, we get:
Point 2 = (2 * 5) - 2
Point 2 = 10 - 2
Point 2 = 8