Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 9 - Section 9.8 - Exponential and Logarithmic Equations and Problem Solving - Exercise Set - Page 592: 79

Answer

(.20,0)

Work Step by Step

In order to find the intersection, first create a well-labeled coordinate axis. Then, draw the line y=0, which will be a horizontal line through the point (0,0). Next, draw the second function. We know that the logarithm is the inverse of an exponential function. Because of this, it starts increasing very quickly when x is small, and then becomes more flat as x increases. Check your answer using a graphing calculator.
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