Algebra 1: Common Core (15th Edition)

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

Chapter 4 - An Introduction to Functions - 4-6 Formalizing Relations and Functions - Practice and Problem-Solving Exercises - Page 273: 47


a. The two variables are time and distance. b. The graph is below showing how time and distance are related.

Work Step by Step

b. In the graph, when the slope is positive it means that the family's distance is increasing and they are moving closer to mountains and away from home. When the slope is constant, there is a horizontal line on the graph which means that the family is resting and not driving while time is moving forward.
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