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anonymous

  • 5 years ago

f(x) = 2x3 + 3x2 − 432x Part (a) Find the intervals on which f is increasing. Find the interval on which f is decreasing. Part (b) Find the local minimum and maximum values of f. Part (c) Find the inflection point. Find the interval on which f is concave up. Find the interval on which f is concave down.

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  1. bahrom7893
    • 5 years ago
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    a) find f': 6x^2 + 6x - 432 = 0 then find where its positive, that is when f is increasing.

  2. bahrom7893
    • 5 years ago
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    when its negative f will be decreasing, at 0 u will have local max and mins

  3. bahrom7893
    • 5 years ago
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    c) f" = 12x + 6 = 0 12x+6 = 0 and the signs of f" change before and after that 0, then u have an inflection point

  4. bahrom7893
    • 5 years ago
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    concave up - f" >0 concave down - f"<0, sorry i gtg just do all the steps above..

  5. anonymous
    • 5 years ago
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    Thanks a lot really appreciate it.

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