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Homework Help: Finding a point on a function

  1. May 4, 2012 #1
    This is not a specific question, but if an equation was given and you were told that f(4)= 2f(2), how would you find f(8)?
  2. jcsd
  3. May 4, 2012 #2
    It is not possible to know what f(8) is from this this information alone. Functions come in many forms.
  4. May 4, 2012 #3


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    You wouldn't without more information.
  5. May 4, 2012 #4


    Staff: Mentor

    "If an equation was given..."
    Is this equation the formula for the function f?
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