Finite Math and Applied Calculus (6th Edition)

Published by Brooks Cole
ISBN 10: 1133607705
ISBN 13: 978-1-13360-770-0

Chapter 9 - Section 9.1 - Quadratic Functions and Models - Exercises - Page 631: 44

Answer

The correct choice is B.

Work Step by Step

The graph, a parabola, opens down (is concave down), so the leading coefficient a is negative. The parabola intersects the y-axis in a point above the origin, so, since $f(0)=c,$ c is positive. The correct choice is B.
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