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# (a)Without using a graphing utility, specify the amplitude and the period for $y=2 \sin \pi x$ and for $y=\sin 2 \pi x$(b) Check your answers in part (a) by graphing the two functions. (Use a viewing rectangle that extends from 0 to 2 in the $x$ -direction and from $-2$ to 2 in the $y$ -direction.

## a) $A=2,2$$\mathrm{A}=1,1$

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##### Heather Z.

Oregon State University

##### Kristen K.

University of Michigan - Ann Arbor

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### Video Transcript

so we have. Why is equal to to cite my ex. So for days the first embassies that the amplitude is too. And the pdf is equal to two pi divided by pi, which would people to to And then the other equation we have is why is equal to sign too high X and forgot. The amplitude is equal to one, and the period is equal to to try divided my to pipe, which is equal to one. So now what you can see here is the red curve is why is equal to to sign high ex And the green curve here is Why's he quit to sign to my ex, huh?