which of the following statements is false a. Alternative solution exist in a linear programming problem whe O has a zero coefficient b. The graphical method can only be used when there are two deci O c. When the slope of the objective function is the same as the slope have alternate optimal solutions d. The term unbounded implies that one or more variables in the sc large. Adding a constraint to a linear programming problem increases the size of True False which of the following sentences is true . a. an unbounded LP for a Max problem occurs when a variable with a negative coefficient in row O has a positive coefficient in each constraints b. The two objective functions (Maximize 5X +7Y, and Minimize - 5X-7Y) will produce the same solution to a linear programming problem. c. All linear programming problems must seek to maximize some quantity. d. The following constraint is linear. X,*X2+2x,- 320 2 If the objective function coefficients are slightly changed within certain llmits the current optimal solution may remain optimal. 2 True False