# Question: Use the weak duality property to prove that if both

Use the weak duality property to prove that if both the primal and the dual problem have feasible solutions, then both must have an optimal solution.

## Relevant Questions

Consider the primal and dual problems in our standard form presented in matrix notation at the beginning of Sec. 6.1. Use only this definition of the dual problem for a primal problem in this form to prove each of the ...Consider the model with two functional constraints and two variables given in Prob. 4.1-5. Follow the instructions of Prob. 6.3-1 for this model. In problem (a) Construct the dual problem for this primal problem. Consider the model given in Prob. 5.3-10. (a) Construct the dual problem. For each of the following linear programming models, use the SOB method to construct its dual problem. (a) Model in Prob. 4.6-7 (b) Model in Prob. 4.6-16 Construct and graph a primal problem with two decision variables and two functional constraints that has feasible solutions and an unbounded objective function. Then construct the dual problem and demonstrate graphically ...Post your question