Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 2 - Section 2.3 - Polynomial Functions and Their Graphs - Exercise Set - Page 350: 65

Answer

a. zeros: $x=-2$, odd multiplicity, $x=1$, odd multiplicity, $x=4$, odd multiplicity, b. $y=(x+2)(x-1)(x-4)$ c. $y=8$

Work Step by Step

Using the graph given in the exercise, we have: a. zeros: $x=-2$, odd multiplicity, $x=1$, odd multiplicity, $x=4$, odd multiplicity, b. We can write an equation as $y=(x+2)(x-1)(x-4)$ c. The y-intercept can be found as $y=8$ from the above equation by letting $x=0$ and by reading from the graph.
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