Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 4 - Inverse, Exponential, and Logarithmic Functions - 4.2 Exponential Functions - 4.2 Exercises: 13

Answer

$0.111$

Work Step by Step

$f\left( x\right) =3^{x}\Rightarrow f\left( -2\right) =3^{-2}=\dfrac {1}{9}=0.1111\ldots \approx 0.111$
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