Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 10 - Exponents and Radicals - 10.7 The Distance Formula, the Midpoint Formula, and Other Applications - 10.7 Exercise Set: 57

Answer

$d=17.8 \text{ units} $

Work Step by Step

Using $d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$ or the Distance Formula, the distance, $d$, between the given points, $( 8.6,-3.4 ) \text{ and } ( -9.2-3.4 ),$ is \begin{array}{l}\require{cancel} d=\sqrt{(8.6-(-9.2))^2+(-3.4-(-3.4))^2} \\\\ d=\sqrt{(17.8)^2+(0)^2} \\\\ d=\sqrt{17.8^2} \\\\ d=17.8 \text{ units} .\end{array}
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