The 2nd derivative of a function at point P is 0, and concavity is positive for values to the right of.P. What must be the concavity to the left of P for P to be an inflection point? A The concavity must also be positive. (B The concavity must be neutral (0). The concavity must be imaginary. D The concavity must be negative.

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Q: Find the value of the derivative (if it exists) at each indicated extremum

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Q: Find the value of the derivative (if it exists) at each indicated extremum

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