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Thread: Finding the area between two curves

  1. #1
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    Finding the area between two curves

    "Find the area contained between the curves y=x^2-6x+4 and x+y=0"

    My question is: Is there a way to tell which graph is the outer/top curve and which would be the inner/lower curve without having to draw a graph?
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  2. #2
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    Re: Finding the area between two curves

    y = x^2 - 6x + 4 and x+y = 0 intersect when x + x^2 - 6x + 4 = x^2 -5x+4 = (x-1)(x-4)=0. So whichever has the higher value of y at x=2, for example is the top curve.
    Last edited by Archie; Nov 24th 2015 at 09:04 PM.
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