Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 10 - Section 10.6 - The Three-Dimensional Coordinate System - Exercises - Page 490: 17


The midpoint of the line segment $~\overline{P_1P_2}~$ is: $(\frac{7}{2}, 3, -3)$

Work Step by Step

$P_1 = (2,-1,1)$ $P_2 = (5,7,-7)$ We can find the midpoint between these two points: $(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} ,\frac{z_1+z_2}{2})$ $= (\frac{2+5}{2},\frac{-1+7}{2} ,\frac{1+(-7)}{2})$ $ = (\frac{7}{2}, 3, -3)$ The midpoint of the line segment $~\overline{P_1P_2}~$ is: $(\frac{7}{2}, 3, -3)$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.