Answer
(a) $x=-4$
(b) $(-4,\infty)$.
Work Step by Step
(a) See graph for $f(x)=3x+5$ and $g(x)=2x+1$. For $f(x)=g(x)$, we have $x=-4$
(b) For $f(x)\gt g(x)$, we need $x\gt -4$ or $(-4,\infty)$.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 2 - Linear and Quadratic Functions - Cumulative Review - Page 189: 14
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