calculus

The point of inflection for graph x^3/3-x^2-3x+7 I cannot seem to find it as stated.

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  1. For a cubic expression, there is one point of inflexion, namely where
    f"(x)=0, or
    2x-2=0
    => x=1
    See following link for an image of the function:
    http://imageshack.us/photo/my-images/819/1309284141.png/

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  2. but what would y be?

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  3. put that x into the function and determine y.

  4. I got it thank you so much it makes much more sense when you help me.

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