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Math Help - Graphing equation with calculator

  1. #1
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    Graphing equation with calculator

    If y=3x+12/(2x-12)what value does y approach as x gets infinitely larger?
    The answer is 3/2.

    When I put the expression above in my graphing calculator, I got some fancy graph with vertical asymptotes, and not one in line with the problem. I don't think I'm putting it in the calculator right. Any idea what I am doing wrongly?
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  2. #2
    MHF Contributor Siron's Avatar
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    Re: Graphing equation with calculator

    If you calculate this limit
    \lim_{x\to +\infty} \frac{3x+12}{2x-12}
    Then you'll come to the answer by dividing every term in the numerator and denominator by x.

    Make sure you enter the correct brackets in your calculator:
    y=(3x+12)/(2x-12)
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  3. #3
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    Re: Graphing equation with calculator

    Edit: Nevermind. Thanks.
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  4. #4
    MHF Contributor Siron's Avatar
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    Re: Graphing equation with calculator

    You're welcome!
    You got the right graph now?
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