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Math Help - Please help me determine the equation of these sine graphs

  1. #1
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    Please help me determine the equation of these sine graphs

    im just so confused. I dont know how to do this. I need help..
    Heres the graphs:

    You don't have to do all of them, if you could just help me do one of them I should be able to do the rest on my own.
    I mostly need help finding the period and the b value.
    Thank you so much
    Last edited by jag123; April 18th 2010 at 01:52 PM.
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  2. #2
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    b) -3\sin x This is sin reflected in the x axis with a amplitude of 3
    c) 3 \sin 2x Once again has an amplitude of 3 and half the period
    d) can also be determined, what do you think the period is? What do you think the min/max is?
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