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Math Help - Need some help

  1. #1
    Junior Member
    Joined
    Jun 2005
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    58

    Need some help

    I need some help checking my problem please help me.

    Solve by graphing. If the solutions are not exact, estimate the answers by indicating the consecutive integers between which the roots are located.

    x^2+6x-2=0

    answer:

    x= 0.316625 and x= 6.31662
    Last edited by Hayabusa; July 20th 2005 at 07:08 AM.
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  2. #2
    Newbie Jamilworm's Avatar
    Joined
    Jul 2005
    From
    San Diego, CA
    Posts
    7

    Cool

    I am not exactly sure how you are supposed to do this, but I have an idea. You can separate the function x^2+6x-2 into the difference of 2 functions, so say that (x^2) - (-6x+2) = 0. You can easily graph x^2 by hand, as you can -6x+2. Since the difference of those 2 functions is zero, just plot them both on the same graph and see where they are equal (where they intersect). You should then be able to estimate the x values, or at least say what integers they lie between.

    Quote Originally Posted by Hayabusa
    I need some help checking my problem please help me.

    Solve by graphing. If the solutions are not exact, estimate the answers by indicating the consecutive integers between which the roots are located.

    x^2+6x-2=0

    answer:

    x= 0.316625 and x= 6.31662
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