Question: The table shows the maximum daily high temperatures (in degrees Fahrenheit) in Las Vegas L and International Falls I for month t, where t =

The table shows the maximum daily high temperatures (in degrees Fahrenheit) in Las Vegas L and International Falls I for month t, where t = 1 corresponds to January.

(a) A model for the temperatures in Las Vegas is
L (t) = 80.60 + 23.50 cos (Ï€t/6 - 3.67).
Find a trigonometric model for the temperatures in International Falls.
(b) Use a graphing utility to graph the data points and the model for the temperatures in Las Vegas. How well does the model fit the data?
(c) Use the graphing utility to graph the data points and the model for the temperatures in International Falls. How well does the model fit the data?
(d) Use the models to estimate the average maximum temperature in each city. Which value in each model did you use? Explain.
(e) What is the period of each model? Are the periods what you expected? Explain.
(f) Which city has the greater variability in temperature throughout the year? Which value in each model determines this variability? Explain.

Las Vegas, International Month, t Falls, I 13.8 57.1 63.0 22.4 3 69.5 34.9 4 78.1 51.5 66.6 87.8 6. 98.9 74.2 104.1 78.6 76.3 101.8 93.8 64.7 10 80.8 51.7 11 66.0 32.5 57.3 12 18.1 Spreadsheet at LarsonPrecalaulus.com

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