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Extrema: First Derivative Test

AP Calculus AB· difficulty 3/5

f'(x)

The graph of f′f' crosses zero at x=0x = 0, going from positive to negative. At x=0x = 0, ff has

  • A

    Local minimum

  • B

    Inflection point

  • C

    Local maximum

    check_circle
  • D

    No critical point

Explanation

First-derivative test: +→−+\to- → local max.

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