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Math Help - How small?

  1. #1
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    How small?

    Not sure how to go about doing this problem...

    If f(3) = 1 and f '(x) ≥ 3 for 3x5, how small can f(5) possibly be?
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  2. #2
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    Quote Originally Posted by ryan18 View Post
    Not sure how to go about doing this problem...

    If f(3) = 1 and f '(x) ≥ 3 for 3x5, how small can f(5) possibly be?
    use the least possible rate of change, i.e. , f'(x) = 3 to determine the least possible value for f(5).
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