Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 3 - Linear and Quadratic Functions - 3.3 Quadratic Functions and Their Properties - 3.3 Assess Your Understanding - Page 145: 12

Answer

$(d)$

Work Step by Step

If a graph opens down, then the leading coefficient, $a$ is negative by definition. According to the given, the graph has a maximum, hence it opens down and its leading coefficient is negative. . Hence, the answer is $(d)$.
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