Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 4 - Section 4.5 - Graphs of Sine and Cosine Functions - Exercise Set - Page 597: 86

Answer

See graph, $56^\circ F$, July.
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Work Step by Step

Based on the given function $y=16sin(\frac{\pi}{6}-\frac{2\pi}{3})+40$, we can calculate the values for each month as shown in the table, and then graph the function as shown in the figure. It can be seen that the highest average monthly temperature happens in July with a value of about $56^\circ F$.
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