Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 4 - Graphs of the Circular Functions - Section 4.1 Graphs of the Sine and Cosine Functions - 4.1 Exercises - Page 145: 47d

Answer

It is decreasing.

Work Step by Step

Since the graph has not yet reached its lowest point at its y intercept, one can assume that it will continue to decrease until it reaches this lowest point. This means that during the current time period, the temperature will continue to decrease until it reaches its lowest value sometime in the near future.
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