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: 17

Answer

$m=-1$

Work Step by Step

With the given points, \begin{array}{l}\require{cancel} y_1= 6 ,\\y_2= 7 ,\\x_1= 3 ,\text{ and }\\ x_2= 2 .\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{y_1-y_2}{x_1-x_2} \\\\ m=\dfrac{6-7}{3-2} \\\\ m=\dfrac{-1}{1} \\\\ m=-1 .\end{array}
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