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anonymous

  • one year ago

The graph of y = f ′(x), the derivative of f(x), is shown below. List the intervals where the graph of f is concave down

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    Answer choices (–4, –2) U (2, 4) (–2, 2) (–4, 0) (0, 4)

  3. Jack1
    • one year ago
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    concave down: slope = decreasing

  4. anonymous
    • one year ago
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    yep and then increasing

  5. anonymous
    • one year ago
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    |dw:1439304522328:dw|

  6. Jack1
    • one year ago
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    |dw:1439304402447:dw|

  7. Jack1
    • one year ago
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    |dw:1439304436977:dw|

  8. Jack1
    • one year ago
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  9. anonymous
    • one year ago
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    yep i know i just cant picture the concavity

  10. Jack1
    • one year ago
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    sor wherever the slope is decreasing = concave down

  11. anonymous
    • one year ago
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    !!!

  12. anonymous
    • one year ago
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    you should have started with that :P

  13. anonymous
    • one year ago
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    (–4, –2) U (2, 4)

  14. Jack1
    • one year ago
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    understanding comes from bringing the whole picture into clarity... if i started with that u would have the answer but not the understanding ;P

  15. anonymous
    • one year ago
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    thanks for the help!

  16. Jack1
    • one year ago
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    np, gud luck ;)

  17. triciaal
    • one year ago
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    when dy/dx = 0 gives the x values for the max and min plug in y to get the value "short cut" use the 2nd derivative if positive then you have a min if negative you have a max max concave down and min concave up

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