College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Are you Ready for College Algebra? - D. Diagnostic Test: The Coordinate Plane - Page XIX: 3


(a) $(4, 10)$ (b) $(3, -2)$

Work Step by Step

Recall: The midpoint of the points $P(x_1, y_1)$ and $Q(x_2, y_2)$ is $\left(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}\right)$. Use the formula above to find the midpoint of each ordered pair: (a) $\text{midpoint} = \left(\frac{3+5}{2}, \frac{7+13}{2}\right)=(4, 10)$ (b) $\text{midpoint} = \left(\frac{-2+8}{2}, \frac{3+(-7)}{2}\right)=(3, -2)$
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