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 Test - Page 479: 18



Work Step by Step

You have y= 2 $\times$ ($\frac{1}{2}$$)^{x}$. Plug in the values x=-2,0,2 to find the y-value. X=-2 y=2 $\times$ ($\frac{1}{2}$$)^{-2}$ y=2 $\times$ 4 y=8 x=0 y= 2 $\times$ ($\frac{1}{2}$$)^{0}$ -any number raised to 0 always equals 1- y=2 $\times$ 1 y=2 x=2 y= 2 $\times$ ($\frac{1}{2}$$)^{2}$ y=2 $\times$ $\frac{1}{4}$ y=$\frac{1}{2}$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.