Operation Research 4: Linear Programming Problem graphical Solution | Summary and Q&A

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November 1, 2021
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Solomon Getachew
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Operation Research 4: Linear Programming Problem graphical Solution

TL;DR

Learn how to solve linear programming problems using graphical methods through step-by-step instructions and an example.

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Questions & Answers

Q: What is the objective of solving linear programming problems using graphical methods?

The objective is to find the optimal solution that maximizes or minimizes the objective function while satisfying all the constraint equations.

Q: How can the graphical method be used to solve linear programming problems?

The graphical method is suitable when there are only two decision variables and their values can be represented on a two-dimensional graph. It involves plotting constraints, finding intercepts, and identifying the feasible solution space.

Q: What is the difference between a feasible solution and an optimal solution?

A feasible solution satisfies all the constraint equations, ensuring that it is within the feasible solution space. An optimal solution, in addition to being feasible, maximizes or minimizes the objective function.

Q: How are corner points determined in graphical solution?

Corner points are calculated by finding the points of intersection between the constraint lines. These points represent the extremes of the feasible solution space.

Summary & Key Takeaways

  • This content explains how to solve linear programming problems using graphical methods.

  • The steps involved in graphical solution include converting inequalities to equalities, plotting constraints, finding intercepts, identifying feasible solution space, finding corner points, and determining the optimal solution.

  • An example problem is provided to demonstrate the application of graphical methods in solving linear programming problems.

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