Group Activity Length of Days The graph shows the number
Chapter 4, Problem 4.1.1.543(choose chapter or problem)
Group Activity Length of Days The graph shows the number of hours of daylight in Boston as a function of the day of the year, from September 21, 1983, to December 15, 1984. Key points are labeled and other critical information is provided. Write a formula for the sinusoidal function and check it by graphing.
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