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How do u graph these without using a graphing calculator?

  1. Feb 27, 2005 #1
    How do u graph these without using a graphing calculator?
    a) f(x)=3sin2x
    b) f(x)=1+cosx
     
  2. jcsd
  3. Feb 27, 2005 #2
    Look at what the numbers do to the function.
    For a), the amplitude is 3 and the period is pi.
    b) Vertical displacement of 1
     
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