Answer
Decreasing and concave up
Work Step by Step
This function is decreasing. As the hot chocolate cools off, the temperature decreases at a slower rate. Since the rate of change is less negative, the graph is concave up.
Functions Modeling Change: A Preparation for Calculus, 5th Edition
by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.
Published by
Wiley
ISBN 10:
1118583191
ISBN 13:
978-1-11858-319-7
Chapter 2 - Functions - 2.6 Concavity - Exercises and Problems for Section 2.6 - Exercises and Problems - Page 107: 18
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