Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 7 - Exponents and Exponential Functions - 7-7 Exponential Growth and Decay - Practice and Problem-Solving Exercises - Page 459: 24

Answer

Initial Amount: 10 Decay Factor: 0.1

Work Step by Step

To find the initial amount, plug 0 in for x: f(x) = 10(0.1$^{x}$) f(0) = 10(0.1$^{0}$) f(0) = 10(1) f(0) = 10 0.1 is the decay factor because this is the value that is attached to the "x" exponent. In other words, this is the value that will determine by how much x decays.
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