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Homework Help: Find the critical numbers of the function.

  1. Jul 6, 2010 #1
    1. The problem statement, all variables and given/known data

    g(y)=(y-1)/(y2-y+1)


    2. Relevant equations



    3. The attempt at a solution

    After I take a derivative, I get
    g'(y)=[y(y-2)]/(y2-y+1)2

    However,
    (y2-y+1)2 does not have any solutions. Am I right that I just throw it away? As an answer, I only leave
    y1=0, y2=2

    Is that correct?
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Jul 6, 2010 #2

    LCKurtz

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    Science Advisor
    Homework Helper
    Gold Member

    I wouldn't say "throw it away". I would just observe that the denominator is always positive. And I think you have a minus sign missing but your critical numbers are correct.
     
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