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 352: 91

Answer

See graph and explanations.

Work Step by Step

Step 1. The graph has 5 turning points, which means that the degree should be at least 6. Step 2. The end behavior shows that the graph falls on both the left and right sides. Thus, the leading term should be negative and an even power. Step 3. We can write a polynomial as $f(x)=-x^6+14x^4-49x^2+36$ Step 4. We can plot the function as shown in the figure and we can see that it imitates the end behavior shown in the graph of the exercise.
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