Identify standard form: Identify the standard form of a sine function.The standard form of a sine function is y=Asin(Bx−C)+D, where A is the amplitude.
Compare to given function: Compare the given function to the standard form.The given function is y=3sin(2x−1)+4. Here, A=3, which represents the amplitude of the sine wave.
Determine amplitude: Determine the amplitude of the function.The amplitude is the absolute value of A, which is ∣3∣=3.
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