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Home > INT3 > Chapter 11 > Lesson 11.1.3 > Problem 11-37
11-37.
Eliana is still working hard on her senior project. She has recorded the sunset time for at least one day a month through December. Her graph of the data is shown at right.
Write a function that models the time the sun sets as a function of the week #, where June 1 is Week 1.
One possibility is to use cosine.
Find the variables for
. What time should Eliana predict the sunset to take place during the first week of March (week 41)?
Substitute
into the answer from part (a).