math

Find the coordinates of the focus, the lenth of the lactus rectum and coordinates of its endpoints and the equation of the directrix, then sketch each curve of 2y^2=8x.

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  1. You have

    y^2 = 4x

    This is just the standard equation

    y^2 = 4px

    with p=1. Check your book or online for properties of parabolas. You can start here if you wish:

    http://www.wolframalpha.com/input/?i=parabola+y%5E2+%3D+4x

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