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anonymous

  • one year ago

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  1. anonymous
    • one year ago
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    Do you have the zeros of the derivative?

  2. anonymous
    • one year ago
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    They are 0, 2, and -2

  3. anonymous
    • one year ago
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    ok. If you take the 2nd derivative and plug them in it will tell you which ones are maximums and minimums. If the 2nd derivative is positive that's a minimum → dec to inc If it's negative there's a max at that point → inc to dec

  4. anonymous
    • one year ago
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    f"(x) = 12x²-16 f(0) = -16, so f(x) has a maximum at x = 0 and goes from increasing to decreasing

  5. anonymous
    • one year ago
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    Put in the other 2 to check

  6. anonymous
    • one year ago
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    At 2 it goes from decreasing to increasing

  7. anonymous
    • one year ago
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    yes

  8. anonymous
    • one year ago
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    And same thing for -2

  9. anonymous
    • one year ago
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    right

  10. anonymous
    • one year ago
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    Okay thank you!!

  11. anonymous
    • one year ago
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    you're welcome

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