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Math Help - cone and the plane intersection

  1. #1
    n22
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    cone and the plane intersection

    the curve is the intersection of the cone t z=√(x+y) and the plane 3z=y+4.
    How do i find the intersection.I know its sounds like a stupid question .
    do i put x,y,z in terms of cylindrical coordinates or spherical?????
    so far I am getting some value in terms of r.
    Guidance is muchly appreciated.
    cheers.

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  2. #2
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    Re: cone and the plane intersection

    You already have z in terms of x and y, substitute it into the second equation to give the relation that is your intersection...
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