Answer
a. $x=-1,$
b. $x>-1,$
c. $x=25$
Work Step by Step
$f(x)=\log_{3} (x+2),$
a. $f(x)=0,$
$\log_{3} (x+2)=0,$
$x+2=1,$
$x=-1,$
b. $f(x)>0,$
$\log_{3} (x+2)>0,$
$x+2>1,$
$x>-1,$
c. $f(x)=3,$
$\log_{3} (x+2)=3,$
$x+2=27,$
$x=25$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 6 - Cumulative Review - Page 503: 14
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