Question: 1. Answer the following questions using the network flow problem given below. a. Create a visual representation of the network flow problem using either computer

1. Answer the following questions using the network flow problem given below. a. Create a visual representation of the network flow problem using either computer software (Paint/PowerPoint/etc) or by hand. Make sure to clearly label everything in such a way that someone else could understand the problem just by looking at the visual representation. b. How many nodes are there in this model? c. Explain in your own words how you interpret a negative sign from the constraints in your visual representation. Minimize: + 7X12 + 6X14 + 3X23 + 4X24 + 5X32 + 9X43 + 8X52 +5X54 Subject to: - X 12 - X 14 =-5 + X12 + X52 + X32 - X 23 - X 24 = +4 - X 32 + X23 + X43 = +8 + X14 + X24 + X54 - X 43 = +0 - X 52 - X 54 = -7 X; 2 0 for all i and j

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