College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 1 - Section 1.1 - Linear Equations - 1.1 Exercises - Page 85: 48

Answer

Variables in linear equations have the power of 1.

Work Step by Step

Because $r$ is squared and this section only deals with the linear equations. Variables in linear equations have the power of 1.
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