Name: Finding an endpoint from a midpoint: solution walkthrough
Uploaded: 2026-11-13
Duration: 1 min 42 s
Description: In the standard (x, y) coordinate plane, M(1, 2) is the midpoint of AB. Point A is at (-3, 5). What are the… Try it, then watch the animated solution.

Problem 26 of 34geo-026

In the standard $(x, y)$ coordinate plane, $M(1, 2)$ is the midpoint of $\overline{AB}$ . Point $A$ is at $({-3}, 5)$ . What are the coordinates of point $B$ ?

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Solution walkthrough1:42