Answer
See below
Work Step by Step
Given: $L(x)=100e^kx$ where $k$ is a measure of the murkiness of the water and $x$ is the depth below the surface (in meters).
Substituting $k=0.02$, we have $L(x)=100e^{-0.02x}$
Graph the function.
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 7 Exponential and Logarithmic Functions - 7.3 Use Functions Involving e - 7.3 Exercises - Problem Solving - Page 497: 59a
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