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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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.
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
Oh, dude, the maximum value of 3x + 4y in the feasible region is like finding the peak of a mountain in a math problem. You gotta plug in the coordinates of the vertices of the feasible region and see which one gives you the biggest number. It's kinda like finding the best topping for your pizza slice in a land of math equations.
The answer depends on the feasible region and there is no information on which to determine that.
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