Answer
(a) $(9,0)$, $(0,-6)$
(b) See graph.
Work Step by Step
(a) Given $f(x)=\frac{2}{3}x-6$, let $f(x)=0$ to get the x-intercept as $x=9$ or $(9,0)$. The y-intercept is $(0,-6)$ from the form of the function.
(b) See graph.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 3 - Linear and Quadratic Functions - 3.5 Inequalities Involving Quadratic Functions - 3.5 Assess Your Understanding - Page 161: 45
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