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 R - Elementary Algebra Review - R.3 Introduction to Graphing - R.3 Exercise Set - Page 954: 20



Work Step by Step

With the given points, \begin{array}{l}\require{cancel} y_1= 7.5 ,\\y_2= -3.2 ,\\x_1= 6.8 ,\text{ and }\\ x_2= 6.8 .\end{array} Using $m=\dfrac{y_1-y_2}{x_1-x_2}$ or the Slope Formula, the slope, $m,$ of the line is \begin{array}{l}\require{cancel} m=\dfrac{7.5-(-3.2)}{6.8-6.8} \\\\ m=\dfrac{7.5+3.2}{6.8-6.8} \\\\ m=\dfrac{10.7}{0} \\\\ m=\text{undefined} .\end{array}
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