**TI83F* AppVariable file 12/24/08, 18:15 GLA203nav 26CE319875DD4F1B9DFDCB650E5220B1GLA203.GLA2031  bounded]bounded:A region is bounded when the graph of a system of constraints is a polygonal region. break-even point@break-even point:The point at which the income equals the cost.  consistentAconsistent:A system of equations that has at least one solution.  constraintsSconstraints:Conditions given to variables, often expressed as linear inequalities.  dependentQdependent:When a system of linear equations has an infinite number of solutions. elimination methodelimination method:The use of addition or subtraction in combination with multiplication or division to eliminate one variable and solve a system of equations. feasible regionKfeasible region:The intersection of the graphs in a system of constraints.  inconsistent:inconsistent:A system of equations that has no solutions.   independentHindependent:When a system of linear equations has exactly one solution.  linear programming|linear programming:The process of finding the maximum or minimum values of a function for a region defined by inequalities.  optimizedoptimize:To seek the optimal price or amount that is desired to minimize costs or maximize profits.  ordered tripleordered triple:1. The coordinates of a point in space. 2. The solution of a system of equations in three variables x, y, and z.  substitution methodsubstitution method:A method of solving a system of equations in which one equation is solved for one variable in terms of the other. system of equationsLsystem of equations:A set of two or more equations with the same variables. system of inequalitiesRsystem of inequalities:A set of two or more inequalities with the same variables.  unboundedFunbounded:A system of inequalities that forms a region that is open.