Answer
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 $$q(r)=-4\left(\frac{1}{3}\right)^r$$
Functions Modeling Change: A Preparation for Calculus, 5th Edition
by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.
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
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