The amplitude of a periodic function is 2.5 and its minimum value is 0. What is the function's maximum value?

a. -2.5

b. 0

c. 2.5

d. 5

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1 Answer

The span between the peak and the trough of a periodic function is 2a where a=amplitude, that is, from -a to a. If a=2.5 then the span is 2a=5. Since the minimum is 0 the maximum is 5 (answer option d).

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