Algebra 1

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

Chapter 7 - Exponents and Exponential Functions - Chapter Test - Page 467: 16

Answer

$f(-1) = 4.21$ $f(2) = 3.61$ $f(3) = 3.43$

Work Step by Step

$f(x) = 4*(.95)^x$ $f(-1) = 4*(.95)^{-1}$ $f(-1) = 4*1/.95$ $f(-1) = 4/.95 = 4.2105$ $f(2) = 4*(.95)^2$ $f(2) = 4*.9025$ $f(2) = 3.61$ $f(3) = 4*(.95)^3$ $f(3) = 4*.857375$ $f(3) = 3.4295$
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