Finite mathematics
utility: linear programming grapher
Use of this system is pretty intuitive:
Press "Example" to see an example of a linear programming problem already set up.
Modify the example or enter your own linear programming problem (with two variables x and y) in the space below using the same format as the example.
Press "Solve" to solve without showing the feasible region, or "Graph" to solve it and also show the feasible region for your problem.
Notes
To solve a linear programming problem with more than two unknowns, use the Simplex Method Tool.
Solution Display Some browsers (including some versions of Internet Explorer) use a proportional width font (like Geneva or Times) in text boxes. This will cause the display of solutions to appear a little messy. You can remedy this by changing the "Sans Serif" font in your browser preferences to "Courier" or some other fixed-width font, and then reloading the page.