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Math Help - Confused on one problem

  1. #1
    Junior Member
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    Confused on one problem

    For a > 0, consider the graph of x^2+y^2=a^2 and the graph of y=x^2/a
    (a) Find the point with positive x value where these two curves intersect.
    (b) If we consider a to be increasing from 0 to infinity then the intersection points of these two curves trace out a new curve. Find the equation of the curve.

    Thanks in advance, really. I am stumped on how to do this, I have an idea of how to do (a), (set y = and solve for x) but I get really awkward answers. I really have no idea how to do (b).

    Thanks for the help,
    Tyler
    Last edited by Latszer; September 27th 2009 at 11:48 PM.
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  2. #2
    Junior Member
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    I got x=(sqrt(a^2-ax)) plugged it back in and it checks out but I still am not sure what (b) is asking.
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