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Math Help - Need Help with a Few Problems Please

  1. #1
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    Lightbulb Need Help with a Few Problems Please

    1. Determine if the graph of the equation y = 16 - x^2 is symmetric with respect to:

    a) the x-axis (yes or no, w/ brief explanation)
    b) the y-axis (yes or no, w/ brief explanation)
    c) the origin (yes or no, w/ brief explanation)
    d) Find the x-intercept(s).
    e) Find the y-intercepts(s).

    2. Given the equation of a circle, find the center and the radius.

    x^2 + y^2 + 5x - 2y + 6 = 0

    3. Write the equation in general form of the line that contains the point (7,3) and is parallel to the line passing through the points (1,1) and (-1,5).

    Any help is appreciated, thanks!
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  2. #2
    Junior Member Mrdavid445's Avatar
    Joined
    Aug 2012
    From
    Michigan
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    Re: Need Help with a Few Problems Please

    2) Remember that the equation for a circle is (x-a)^2+(y-b)^2=r^2, with r being the radius and the center being (a, b).
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