This may indicate degeneracy, where more constraints are binding at a feasible point than are necessary to define it.

This might indicate degeneracy, because more constraints are binding at the feasible point than are necessary to define the solution.

This may indicate a redundant constraint because the third constraint is unnecessary to define that feasible point and may already be implied by the other two.

This situation indicates degeneracy in linear programming. When more constraints intersect at a single feasible point than there are decision variables needed to define it, that corner point is over-determined.

This may indicate degeneracy. In Linear Programming, degeneracy occurs when more constraints are binding at a feasible point than are necessary to define that point. Here, three constraints meet at the same feasible point, but only two are needed to determine it, so the point may be a degenerate basic feasible solution (BFS).

This indicates degeneracy. It occurs when more constraints are binding at a feasible point than are necessary to define that point.