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University of California, Berkeley

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Problem 47

Period and Amplitude In Exercises $45-48,$ determine the period and amplitude of each function.

$$y=-3 \sin 4 \pi x$$

Answer

( SEE SOLUTION )

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## Discussion

## Video Transcript

Pixar amplitude is the value in front of our signs. That is all of it, that it's the absolute value of making street. It gives the okay. Our period is equal to pi. Over absolute Ali of the coefficient in front. Um, just for that gives me pie, actually, for pie. Um, we have four for pie, which gives me two pi over four pi, which gives me won over, kid.

## Recommended Questions

Period and Amplitude In Exercises $45-48,$ determine the period and amplitude of each function.

$$y=\frac{3}{2} \cos \frac{x}{2}$$

Period and Amplitude In Exercises $45-48,$ determine the period and amplitude of each function.

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Period and Amplitude In Exercises $45-48,$ determine the period and amplitude of each function.

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State the amplitude and period of each function.

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In Exercises 35–42, determine the amplitude and period of each

function. Then graph one period of the function.

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y=\cos 4 x

$$

Determine the amplitude and period of each function. Then graph one period of the function.

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In Exercises 35–42, determine the amplitude and period of each

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y=4 \cos 2 \pi x

$$