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Math Help - Drawing cos graph

  1. #1
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    Drawing cos graph

    hi all,
    how would the graph of y=2 cos x + 2 on the domain 0<=x<=2Pi would look?
    Last edited by drake01; August 23rd 2012 at 08:16 PM.
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  2. #2
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    Re: Drawing cos graph

    Quote Originally Posted by drake01 View Post
    hi all,
    how would the graph of y=2 cos x + 2 on the domain 0<=x<=2Pi would look?
    You should know the basic shape of the cosine graph. The period is \displaystyle \begin{align*} 2\pi \end{align*}, the amplitude is 2 which means the basic graph is stretched by a factor of 2 vertically, and the mean value is 2, so the graph is moved up by 2 units.
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