Unformatted text preview: ± Positive result means concave up = min ± Negative result means concave down = max & You can also determine whether the function is increasing (derivative is positive) or decreasing (derivative is negative) to the right and left of any stationary point. o If the derivative is positive, then changes to negative on either side of a stationery point, you have a local maximum. o If the derivative is negative, then changes to positive on either side of a stationery point, then you have a local minimum. o If the derivative doesn’t change sign, it’s neither. 4. If you are dealing with an application problem, be sure to answer the specific question....
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 Spring '11
 Teague
 Calculus, Derivative, Optimization, Fermat's theorem

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