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Math Help - Matrix With Parameters

  1. #1
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    Matrix With Parameters

    Matrix With Parameters-untitled.jpg

    I have this matrix where I need to find the values for x and y such that the system is inconsistent. I tried reducing the matrix so that each row would have a pivot, but I ended up with quite a mess,

    Matrix With Parameters-untitled2.jpg

    Can't figure out if I am stumbling somewhere or even where to venture from here. Any hints or help is appreciated.
    Last edited by Hal2001; September 15th 2012 at 03:56 PM.
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  2. #2
    Senior Member MaxJasper's Avatar
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    Lightbulb Re: Matrix With Parameters

    Try 2-x-y=0
    Last edited by MaxJasper; September 15th 2012 at 05:34 PM.
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  3. #3
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    Re: Matrix With Parameters

    *edit* Just realized yes this would appear to be it. Thanks.
    Last edited by Hal2001; September 15th 2012 at 06:23 PM.
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  4. #4
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    Re: Matrix With Parameters

    In case anyone else comes along this thread. I think for the system to be inconsistent would need 2-y-x=0, and also the additional condition -2x^2-5x+1/=0 (not equal to zero). In thinking about the problem, suppose we wanted to know when the system had infinite solutions, then we'd have 2-x-y=2x^2+5x-1=0, correct?
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