Question: $1. Problem 1: Consider the following two-variable linear program MAX Z=x+y 2x - y = 3. --(Constraintl) X+ y s4.. .........(Constraint2) *,y20 (a) [5 marks)

$1. Problem 1: Consider the following two-variable linear program MAX Z=x+y 2x - y = 3. --(Constraintl) X+ y s4.. .........(Constraint2) *,y20 (a) [5 marks) Solve this LP graphically (use the drawing grid below). (b) [4 marks] Suppose that the second constraint was x + y sb. For what values of b would the LP be infeasible. (c) [4marks] What is the range for e (the objective function coefficient of x) for which the optimal solution remains optimal

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