- The constraints and objective function must be linear

- Clearly define the meaning of each variable

- Explain purpose of the constraints

DEF company produces widgets. The figure below represents its logistic network The numbers on the arcs represent the unit shipping costs. The network nodes have the following interpretation: Plants: {1, 2} Distribution Center: {3} Warehouses: {4, 5} Markets: {6, 7} For the month of January, the unit production costs and capacities at the plants are M January market demands are Q1: Formulate a linear program that minimizes the total cost for the month ofJanuary