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Math Help - Area betwixt two graphs

  1. #16
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    Thank you all so much for the help so far, I know some of my questions were redundant and I apologize.

    In the question they ask for f(x) and g(x).

    The answers for both are; f(x) = 2 \sqrt{x+4} & g(x) = \frac {36-x}{3} + \sqrt {x+4}

    Leaving g(x) alone, I don't understand how they got the 2 in the f(x)... My formula doesn't have that.

    PS; Thanks AllanCuz for the detailed solution to finding it w/r to y, which is what I'll have to do for the 2nd part but for now I need to use the original method with x.
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  2. #17
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    Quote Originally Posted by Archduke01 View Post
    Thank you all so much for the help so far, I know some of my questions were redundant and I apologize.

    In the question they ask for f(x) and g(x).

    The answers for both are; f(x) = 2 \sqrt{x+4} & g(x) = \frac {36-x}{3} + \sqrt {x+4}

    Leaving g(x) alone, I don't understand how they got the 2 in the f(x)... My formula doesn't have that.
    Why are the answer equations for definite integrals?
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