Intermediate Algebra (12th Edition)

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

Chapter 2 - Section 2.2 - The Slope of a Line - 2.2 Exercises: 45

Answer

$slope=-\frac{5}{2}$

Work Step by Step

To calculate the slope between points $(x_1,y_1)$ and $(x_2,y_2)$, we use the formula: $slope=m=\frac{y_2-y_1}{x_2-x_1}$ We see that the two blue points on the line are: $(-3,3)$ and $(-1,\ -2)$. We plug in the points into the slope equation: $slope=m=\frac{y_2-y_1}{x_2-x_1}=\frac{-2-3}{-1-(-3)}=\frac{-5}{2}=-\frac{5}{2}$
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