The symbols to the left of some of the problems (or their parts) have the following meaning:

D: The demonstration example listed above may be helpful.

I: You can check some of your work by using procedures listed above.

An asterisk on the problem number indicates that at least a partial answer is given in the back of the book.

Consider the three-variable linear programming problem.

(a) Construct a table like Table 5.1, giving the set of defining equations for each CPF solution.

(b) What are the defining equations for the corner-point infeasible solution (6, 0, 5)?

(c) Identify one of the systems of three constraint boundary equations that yields neither a CPF solution nor a corner-point infeasible solution. Explain why this occurs for this system.

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