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Math Help - Construct graphs

  1. #1
    Newbie
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    Nov 2009
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    Construct graphs

    How do I graph these?

    Y = 1/X+6

    Y = 1 -3x - x^2


    I have the answer but I don't know how to do the working, can someone show me?
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  2. #2
    Senior Member
    Joined
    Nov 2008
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    Quote Originally Posted by Draft View Post
    How do I graph these?

    Y = 1/X+6

    Y = 1 -3x - x^2

    I have the answer but I don't know how to do the working, can someone show me?
    You can sketch them, but you can't draw them very accurate. You should calculate some values first (e.g. maximum, minimum, limis, zeros,...)

    You can substitute many values for x as well, so you get some points (x,y) of the graph Y.
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