Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 2 - Review Exercises - Page 209: 17



Work Step by Step

Using $m=\dfrac{y_1-y_2}{x_1-x_2}$ or the Slope Formula, the slope of the line through $( -3,1 )$ and $( 3,-1 )$ is \begin{array}{l}\require{cancel} m=\dfrac{1-(-1)}{-3-3} \\\\ m=\dfrac{1+1}{-3-3} \\\\ m=\dfrac{2}{-6} \\\\ m=\dfrac{\cancel{2}}{\cancel{2}(-3)} \\\\ m=-\dfrac{1}{3} .\end{array}
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