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Math Help - Linear programming with upper limit

  1. #1
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    Linear programming with upper limit

    I have the following linear programming model:

    p = 10x+15y

    Constraints:
    1x+2y \le 600
    0.125x+0.5y \le 100
    0.05x+\frac{1}{3}y \le 60
    0 \le x\le 500

    The constraint I'm struggling with is the last one (about x's maximum value).

    I've been taught to solve them by plotting the points. When you plot the points, the x value is always greater than 500 (in this case, 600,800 and 1200).

    What is the appropriate course of action here? Do I just assume x is 500, or do I need to do something else?

    Thank you in advance
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  2. #2
    Super Member Rebesques's Avatar
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    Re: Linear programming with upper limit

    've been taught to solve them by plotting the points


    You must modify your code so that the last restriction is included in the results
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  3. #3
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    Re: Linear programming with upper limit

    Having looked at an online calculator, it appears I just continue as normal (plotting the points) and simply put it out of range when I'm finding the corners.

    Here's a link to the calculator, in case anyone else is looking in the future.
    PHPSimplex: Graphical method
    Thanks from emakarov
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