Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 5 - Exponential and Logarithmic Functions - 5.3 One-to-One Functions; Inverse Functions - 5.3 Assess Your Understanding - Page 282: 89



Work Step by Step

The graph goes through the point $(0,1)$ hence the function is in the form $f(x)=a^x.$ $(1,3)$ is on the graph, hence $f(1)=a^1=3\\a=3.$ Therefore $f(x)=3^x.$
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