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anonymous

  • one year ago

Find the derivative of f(x) = 8x + 4 at x = 9.

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  1. anonymous
    • one year ago
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    what is the derivative of 8x+4?

  2. anonymous
    • one year ago
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    idk

  3. anonymous
    • one year ago
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    @dan815 @ganeshie8 @Miss.SweetiePie

  4. welshfella
    • one year ago
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    if y = ax^n derivative is anx^(n-1)

  5. welshfella
    • one year ago
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    now plug in a = 8 and n = 1 into ax^n and see what you get

  6. anonymous
    • one year ago
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    8x^1

  7. welshfella
    • one year ago
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    ok now plug those values of a and n into anx^(n-1) to get the derivative

  8. anonymous
    • one year ago
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    these r the options 0 4 8 9

  9. welshfella
    • one year ago
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    derivative = 8*1x^(1-1) = ?

  10. anonymous
    • one year ago
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    http://openstudy.com/study#/updates/51c65e5ee4b055e613b92dfb

  11. anonymous
    • one year ago
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    thanks @stratemeyerjr

  12. welshfella
    • one year ago
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    = 8 x^0 what is x^0 equal to ?

  13. anonymous
    • one year ago
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    thank @welshfella :) he put in the effort

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