Amplitude
Definition of Amplitude

• Amplitude is Half the Distance between the Minimum and Maximum values of the range of a periodic Function with a bounded range.
• In other words, for functions of the form y = A sin bθ or y = A cos bθ, the Amplitude is |A|.

Examples of Amplitude

Solved Example on Amplitude

Find the Amplitude of the Function .
Choices:
A. - 4
B. 4
C.
D. - 3
Correct Answer: B
Solution:
Step 1: Recall that “for functions of the form y = A cos bθ, the Amplitude is |A|.”
Step 2: So, 4 is the Amplitude of the given function.

Related Terms for Amplitude

• Periodic Function
• Range
• Function
• Bounded

Additional Links for Amplitude

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