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    IHateMath_1516 Posts: 1, Reputation: 1
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    #1

    Mar 11, 2012, 01:37 PM
    Parabolas with vertex (0,0). How to find focus?
    How do I find the focus of a parabola with a vertex of (0,0)?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Mar 12, 2012, 10:19 AM
    The general formula for a parabola is:



    where is the vertex and is the distance from the vertex to the focus. For a parabola whose vertex is at (0,0) this becomes:



    As you can see the position of the focus depends on the value of .
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