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swin2013

  • 3 years ago

Which of the following values in the absolute maximum of the function f(x) = 4x-x^2+6 on the interval [0.4]

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  1. swin2013
    • 3 years ago
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    The answer is 10 but i keep getting 2

  2. KeKiu
    • 3 years ago
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    is that 0.4? or 0 and 4?

  3. swin2013
    • 3 years ago
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    0 and 4

  4. swin2013
    • 3 years ago
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    0,4

  5. FoolAroundMath
    • 3 years ago
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    Try differentiating f(x) and set the derivative equal to 0 to get the point of maxima.

  6. swin2013
    • 3 years ago
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    f'(x) = -2x+4 x = -2, i got that

  7. swin2013
    • 3 years ago
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    i mean positive 2

  8. FoolAroundMath
    • 3 years ago
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    Yes, then evaluate the value of the function to get the maximum value in that interval.

  9. swin2013
    • 3 years ago
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    OH i had an arithmetic problem! thank you! :)

  10. dpaInc
    • 3 years ago
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    or... since this is a parabola, you can just find the vertex...

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