Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Skills Handbook - The Coordinate Plane, Slope, and Midpoint - Exercises - Page 977: 12



Work Step by Step

The coordinates $(x_{m},y_{m})$ of the midpoint of the segment joining the points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ are given by $$x_{m}=\frac{x_{1}+x_{2}}{2}$$ and $$y_{m}=\frac{y_{1}+y_{2}}{2}$$ Substitute $x_{1}=-4$, $y_{1}=4$, $x_{2}=2$ and $y_{2}=-5$ $$x_{m}=\frac{-4+2}{2}=-1$$ and $$y_{m}=\frac{4+(-5)}{2}=-0.5$$
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