The optimal solution is to produce 320 tables and 360 chairs for a maximum profit of $4,040. The constraint on the number of chairs is that a maximum of 450 chairs can be produced. In the optimal solution, 360 chairs are produced. The slack for the nonbinding constraint is the 450 360 or 90. The optimality of the corner point will not change if the production level of chairs is increased beyond 450. The slack will increase as the right-hand side (RHS) constraint for the chairs increases. If the company decreases the constraint of 450 chairs to make the production limit more restrictive, the corner point is feasible and optimal as long as the production of 360 chairs is still permitted. The optimal corner point remains optimal as long as the slack is within 90 chairs. If the production level is reduced to lower than 360 chairs, the corner point is no longer feasible, and a new corner point becomes optimal