Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 4 - An Introduction to Functions - 4-1 Using Graphs to Relate Two Quantities - Lesson Check: 1

Answer

The variables are car weight and fuel used. The graph shows that as car weight increases, fuel used increases.

Work Step by Step

Car weight is the variable on the x axis. Fuel used is on the y axis. A graph shows the relationship of changes in the variable on the x axis to changes in the variable on the y axis. The x axis increases as you move to the right. The y axis increases as you move up.
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