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Mathematics
Trigonometry
Graphs and Transformations
The graph of f(x)= cos x is vertically compressed to obtain the graph of g(x) = ¼ cos x. What is the amplitude of the graph of g(x)= ¼ cos x?
1 answer
The amplitude of the graph of a function is the distance from the midline to the maximum or minimum point of the graph. For the function g(x) = ¼ cos x, the amplitude is equal to |1/4| = 1/4.
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