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After graphing the equations for the linear programming problem, the graph will have some intersecting lines forming some polygon. This polygon (triangle, rectangle, parallelogram, quadrilateral, etc) is the feasible region.

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Is it possible for a linear programming problem to have no solution?

Yes. There need not be a feasible region.


Distinguish between integer programming problem and linear programming problem?

Integer programming is a subset of linear programming where the feasible region is reduced to only the integer values that lie within it.


Can a linear programming problem have multiple solutions?

Yes. If the feasible region has a [constraint] line that is parallel to the objective function.


What is infeasibility in linear programming?

In linear programming, infeasibility refers to a situation where no feasible solution exists for a given set of constraints and objective function. This can occur when the constraints are contradictory or when the feasible region is empty. Infeasibility can be detected by solving the linear programming problem and finding that no solution satisfies all the constraints simultaneously. In such cases, the linear programming problem is said to be infeasible.


What is optimal feasible solution?

It is usually the answer in linear programming. The objective of linear programming is to find the optimum solution (maximum or minimum) of an objective function under a number of linear constraints. The constraints should generate a feasible region: a region in which all the constraints are satisfied. The optimal feasible solution is a solution that lies in this region and also optimises the obective function.


How do you find feasible region?

To find the feasible region in a linear programming problem, first, define the constraints as inequalities based on the problem's requirements. Next, graph these inequalities on a coordinate plane, identifying where they intersect. The feasible region is the area that satisfies all constraints, typically bounded by the intersection points of the lines representing the constraints. This region can be either finite or infinite, depending on the nature of the constraints.


What is the feasible region in linear programming?

Linear programming is just graphing a bunch of linear inequalities. Remember that when you graph inequalities, you need to shade the "good" region - pick a point that is not on the line, put it in the inequality, and the it the point makes the inequality true (like 0


How do you get a feasibility region linear programming?

A feasible region is, in a constrained optimization problem, the set of solutions satisfying all equalities and/or inequalities. On the other hand a linear programming is a constrained optimization problem in which both the objective function and the constraints are linear, therefore a feasible region on a linear programming problem is the set of solutions of the a linear problem. Many algorithms had been designed to successfully attain feasibility at the same time as resolving the problem, e.g. reaching its minimum. Perhaps one of the most famous and extensively utilized is the Simplex Method who travels from one extremal point to another, which happens to be the possible extrema given the convex nature of the problem, by maintaining a fixed number of components to zero, called basic variables. Then, the algorithm arrives to a global minimum generally in polinomial time even if its worst possible case has already been proved to be exponencial, see Klee-Minty's cube.


Why does Phase 1 in linear programming have alternative optimal solutions?

Phase 1 of linear programming aims to find a feasible solution to the problem by minimizing a "penalty" function, often involving artificial variables. If the feasible region is unbounded or if multiple ways exist to achieve the same minimum value for the penalty function, there can be alternative optimal solutions. This occurs when the objective function is parallel to a constraint boundary, allowing for multiple feasible points that yield the same objective value. Hence, the presence of alternative optimal solutions is tied to the geometry of the feasible region and the nature of the objective function.


What is simplex method of linear programming?

The simplex method is an algorithm used for solving linear programming problems, which aim to maximize or minimize a linear objective function subject to linear constraints. It operates on a feasible region defined by these constraints, moving along the edges of the feasible polytope to find the optimal vertex. The method iteratively improves the solution by pivoting between basic feasible solutions until no further improvements can be made. It's widely used due to its efficiency and effectiveness in handling large-scale linear optimization problems.


What is the maximum value of 5x 2y in the feasible region?

To find the maximum value of the expression (5x + 2y) in a feasible region, you would typically use methods such as linear programming, considering constraints that define the feasible region. By evaluating the vertices of the feasible region, you can determine the maximum value. Without specific constraints provided, it's impossible to give a numerical answer. Please provide the constraints for a detailed solution.


What is optimal solution?

It is usually the answer in linear programming. The objective of linear programming is to find the optimum solution (maximum or minimum) of an objective function under a number of linear constraints. The constraints should generate a feasible region: a region in which all the constraints are satisfied. The optimal feasible solution is a solution that lies in this region and also optimises the obective function.