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Math Help - Finding the derivative of a funtion

  1. #1
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    Finding the derivative of a funtion

    Can someone please expain to me how to find the derivative of this function:

    (square root of (3-2x))

    Thank you!
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  2. #2
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    Quote Originally Posted by BubblegumPops View Post
    Can someone please expain to me how to find the derivative of this function:

    (square root of (3-2x))

    Thank you!
    \sqrt{3-2x} = \sqrt{t} where t=3-2x.
    By chain rule,
    \frac{dy}{dt} = \frac{1}{2}t^{-1/2} , \frac{dx}{dt} = -2 \mbox{ so }\frac{dy}{dx} = \frac{1}{2} (-2) t^{-1/2} = - (3-2x)^{-1/2}
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