College Algebra / Unit 3 Alg 127 short lesson, about 20 seconds
The Midpoint Formula
Captions available
The idea
The midpoint formula averages the coordinates of two endpoints: M = ((x₁ + x₂)/2, (y₁ + y₂)/2).
In practice
For (1, 2) and (4, 6), the midpoint is (5/2, 8/2) = (2.5, 4) — halfway across and halfway up, the segment's exact center.
Where people slip
Averages add then halve; distances subtract.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
- Nothing. This is a starting point.
Unlocks
- Nothing yet depends on this.
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