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 - Chapter Review - Page 477: 65



Work Step by Step

You have y=40($\frac{1}{2}$$)^{x}$.Plug in x=1,2,3 to find the value of Y: x=1: y=40($\frac{1}{2}$$)^{1}$ y=40 $\times$ $\frac{1}{2}$ y=20 x=2: y=40($\frac{1}{2}$$)^{2}$ y=40 $\times$ $\frac{1}{4}$ y=10 x=3: y=40($\frac{1}{2}$$)^{3}$ y=40 $\times$ $\frac{1}{8}$ y=5 So we have (1,20)(2,10)(3,5)
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