Max z 400x, +100x, 8x, +10x, 80 2x, + 6x, 36 Optimal Obi. Value z 4000 Variable Value 10 Reduced Cost -400 Dual Value X1 Constraint Slack and Surplus 16 Obi. Coefficient 50 Variable Allowable Alloable ncrease 1E+30 400 Decrease 320 1E+30 400 100 RHS Value 80 Allowable Increase 64 1E+30 Constraint Allowable Decrease 80 16 36 Use Computer Output 3. Suppose the right hand side of constraint 1 is increased by 10. Which one of the following statements is guaranteed to be true? the z-value becomes 4.500 the z-value becomes 3.500 the problem must be resolved the dual value of 0 is no longer valid