I just need to answer the first question, what information do you need?

1. Explain what the constraints represent, and why they have to be carefully considered when determining the objective function in an LP problem. (2 marks) 2. Choose the correct answer of the following: (4 marks) 1. What is the essential condition for using the graphical method? a. Negative variables. b. Integer variables. c. Only two decision variables. d. More than three variables. 2- In LP, numbers in the objective and constraints are always known and do not change during the period being studied. This assumption is called a. Proportionality. b. Additivity. c. Divisibility. d. Certainty