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Math Help - Derivative Problem

  1. #1
    Member ~berserk's Avatar
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    Derivative Problem

    Hello, I have an engineering class I am taking that requires the use of calculus, unfortunately I won't be in calc until next semester so I'm a little out of luck for this problem. I need to know how to take the first derivative of the equation:
    y = -0.0264x^4 + 0.3323x^3 - 1.1167x^2 + 0.4429x + 0.9166 with respect to x.
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  2. #2
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    for y =ax^n \implies \frac{dy}{dx} =  nax^{n-1}
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  3. #3
    Member ~berserk's Avatar
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    So is this correct?: y=-0.1056x^3+0.9969x^2-2.2334x+0.4429
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  4. #4
    Master Of Puppets
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    Quote Originally Posted by ~berserk View Post
    So is this correct?: y=-0.1056x^3+0.9969x^2-2.2334x+0.4429
    Yep...

    but write it like this

    y'=-0.1056x^3+0.9969x^2-2.2334x+0.4429

    because y and the derivative function are different.
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  5. #5
    Member ~berserk's Avatar
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    thanks for the help it made this a lot easier:
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