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March 12th, 2012, 06:54 PM   #1
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Sinusoid Question

Hello everyone, I have to graph a sinusoid y = -3sin(1/6)(x+5pi/6) and I'm having trouble doing it. Does the period come out to be 12pi? I'm not sure how to graph this function because it seems quite large! What can I do?

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March 12th, 2012, 07:11 PM   #2
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Re: Sinusoid Question

1. Its a Sine wave, but lag(shifted to the left) by 5?/6 radians
2. The Period is 2?/(1/6)=12?
3. Amplitude is 3
4. The graph is reflected on the x-axes.
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March 12th, 2012, 07:35 PM   #3
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Re: Sinusoid Question

Here is a plot of the curve over 1 period:

[attachment=0:2h3vks6l]sinecurve.jpg[/attachment:2h3vks6l]

Over this period, its y-intercepts are from left to right:







Its crest or maximum is at:



Its trough or minimum is at:

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