Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 6 - Systems of Equations and Inequalities - Common Core Cumulative Standards Review - Selected Response - Page 414: 22


Jillian walks 0.5 blocks per minute.

Work Step by Step

The number of blocks per minute Jillian walks is also the slope of the graph. Plot two points $(2,4)$ and $(4,3)$ Use the slope formula: $m=\frac{y_2-y_1}{x_2-x_1}=\frac{3-4}{4-2}=-\frac{1}{2}$ Therefore, Jillian walks 0.5 blocks per minute.
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