Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 7 - Exponents and Exponential Functions - 7-7 Exponential Growth and Decay - Lesson Check - Page 463: 2

Answer

The initial amount is 15

Work Step by Step

The exponential formula is y=a(b$)^{x}$.A is the initial amount and B is the growth/decay factor. Therefore, the initial amount of y=15 $\times$ $3^{x}$ is 15 because it is the value of A.
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