Algebra 1: Common Core (15th Edition)

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

Chapter 5 - Linear Functions - 5-1 Rate of Change and Slope - Lesson Check: 5

Answer

An example would be if we measured the mass of an unchanging object over time.

Work Step by Step

A horizontal line means that that as the independent variable changes, the dependent variable does not change at all. In the case of this example, time continues to move forward, but the mass of the object does not change, creating a horizontal line.
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