1. Coffee sales on the JU campus are at their highest in the winter, and lowest in the summer. In January (t = 0), the highest number ice cream cones are sold at 2800 cups. The sales are lowest in July (t = 6) when 1400 cups are sold. We will use a sinusoidal function to model ice cream sales. %3D Below is the graph of the sales of coffe, f(t), as a function of time, t in months. 4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 10 12

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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What is the period of f(t)? 
Find a formula for f(t). 

1. Coffee sales on the JU campus are at their highest in the winter, and lowest in the
summer. In January (t = 0), the highest number ice cream cones are sold at 2800 cups.
The sales are lowest in July (t = 6) when 1400 cups are sold. We will use a sinusoidal
function to model ice cream sales.
Below is the graph of the sales of coffe, f(t), as a function of time, t in months.
4,000
3.500
3.000
2.000
1.500
1,000
500
0.
1.
10
12
Transcribed Image Text:1. Coffee sales on the JU campus are at their highest in the winter, and lowest in the summer. In January (t = 0), the highest number ice cream cones are sold at 2800 cups. The sales are lowest in July (t = 6) when 1400 cups are sold. We will use a sinusoidal function to model ice cream sales. Below is the graph of the sales of coffe, f(t), as a function of time, t in months. 4,000 3.500 3.000 2.000 1.500 1,000 500 0. 1. 10 12
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