Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 9 - Section 9.2 - Exponential Functions - 9.2 Exercises - Page 597: 24

Answer

Graph of $f(x)=6^{-x}$

Work Step by Step

Substituting values of $x$ in the given function, $ f(x)=6^{-x} $, results to \begin{array}{c|c|c} \text{If }x=-1: & \text{If }x=0 & \text{If }x=1 \\\\ f(x)=y=6^{-x} & f(x)=y=6^{-x} & f(x)=y=6^{-x} \\ y=6^{-(-1)} & y=6^{-0} & y=6^{-1} \\\\ y=6^{1} & y=6^{0} & y=\dfrac{1}{6^1} \\\\ y=6 & y=1 & y=\dfrac{1}{6} .\end{array} Tabulating the results above results to the table below. \begin{array}{c|c} \hline x & y \\\hline -1 & 6 \\\hline 0 & 1 \\\hline 1 & \dfrac{1}{6} \end{array} Connecting the points $ \left(-1,6\right), \left(0,1\right), \text{ and } \left(1,\dfrac{1}{6}\right) $ with a curve gives the graph of $ f(x)=6^{-x} $.
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