Answer
a) $x=1,4$
b) $1\lt x\lt4$
Work Step by Step
According to the graph:
a) $x=1,4$. These are the points where the graph intersects with the x-axis ($y=0$).
b) $1\lt x\lt4$. This is the region where the graph is above the x-axis ($y=0$).
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 1, Equations and Graphs - Section 1.9 - Solving Equations and Inequalities Graphically - 1.9 Exercises - Page 158: 4
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