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Math Help - graphing integers and rationals

  1. #1
    wendy
    Guest

    graphing integers and rationals

    how would I Graph the solution set for each as follows one example? -7<x<-2,xEI
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  2. #2
    MHF Contributor
    Joined
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    If -7< x <-2 only:

    That means x is "between" -7 and -2, but -7 and -2 are not parts of the x-values, so,
    draw a horizontal number line,
    put holes or small circles at -7 and -2,
    define or mark with heavy line the distance between the two holes.

    That is the graph of -7 < x < -2.

    ----------------
    If -7 < x < -2, xEI

    Since I don't understand what you mean by xEI, I don't know how to graph that.
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  3. #3
    MHF Contributor
    Joined
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    Ummm, by xEI you mean x belongs to the set of integers only?

    Okay then.

    Draw a horizontal number line.
    Draw holes on -7 and -2.
    Draw big dots, not holes, on -6,-5,-4,and -3.

    That is it.
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