Concept explainers
Temperature The table lists the average monthly temperature in Vancouver, Canada. Source: Weather.com.
These average temperature cycle yearly and change only slightly over many years. Because of the repetitive nature of temperatures from year to year, they can be modeled with a sine function. Some graphing calculators have a sine regression feature. If the table is entered into a calculator, the points can be plotted automatically, as shown in the early chapters of this book with other types of functions.
a. Use a graphing calculator to plot the ordered pairs (month, temperature) in the interval
b. Use a graphing calculator with a sine regression feature to find an equation of the sine function that models these data.
c. Graph the equation from part
d. Calculate the period for the function found in part
e.
f.
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Calculus For The Life Sciences
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