Answer
$f(-2.2)\approx 0.653$
$f(\sqrt{7})\approx 18.775$
$f(5.5)=135.765$
Work Step by Step
We are given:
$f(x)=3*2^{x}$
We evaluate with a calculator:
$f(-2.2)\approx 0.653$
$f(\sqrt{7})\approx 18.775$
$f(5.5)=135.765$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 4, Exponential and Logarithmic Functions - Chapter 4 Review - Concept Check - Page 424: 2
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