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Math Help - Secant Question

  1. #1
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    Secant Question

    I was given the following problem to graph:
    y=3sec(2(x-pi))-3

    I know the amplitude is 3 and the period is pi and the vertical shift is 3 down, but is the phase shift Pi or Pi/2?
    Because if it is Pi/2 the graph of cosine starts at -3....which would contradict the amplitude being 3. And if it is Pi that would mean the phase shift is from Pi to Pi so there would be no shift...
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  2. #2
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    Re: Secant Question

    horizontal shift is \pi units to the right
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