
To determine the period of the given function and graph it.

Answer to Problem 7CYU
Period
Explanation of Solution
Given:
Concept used:
Amplitude is the distance between the center line of the function and the top or bottom of the function.
Period is the distance between two peaks of the graph.
The generalized equation for a cosine function is:
Amplitude
Period
Calculation:
For
Comparing with the general cosine equation
Period
The period of the given function is
Graph:
The graph of
Conclusion:
Therefore, the period of the given function is
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