Functions Modeling Change: A Preparation for Calculus, 5th Edition

Published by Wiley
ISBN 10: 1118583191
ISBN 13: 978-1-11858-319-7

Chapter 4 - Exponential Functions - 4.1 Introduction to the Family of Exponential Functions - Exercises and Problems for Section 4.1 - Exercises and Problems - Page 145: 2


Yes, $q(r)=-4\left(\frac{1}{3}\right)^r$

Work Step by Step

Another way to write $\frac{1}{3^r}$ is $\left(\frac{1^r}{3^r}\right)=\left(\frac{1}{3}\right)^r$. Therefore, the equation is equal to $$q(r)=-4\left(\frac{1}{3}\right)^r$$
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