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normala

  • one year ago

extreme value of y=2x^2-8x+9

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  1. phi
    • one year ago
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    Do you mean find the maximum or minimum value of y, defined by \[y=2x^2-8x+9 \]? if so, see http://www.khanacademy.org/math/differential-calculus/derivative_applications/critical_points_graphing/v/identifying-minima-and-maxima-for-x-3---12x---5

  2. phi
    • one year ago
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    or the introduction to the ideas: http://www.khanacademy.org/math/differential-calculus/derivative_applications/critical_points_graphing/v/minima--maxima-and-critical-points

  3. normala
    • one year ago
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    thank you:)

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