For the next two questions, suppose you had the following ou…
For the next two questions, suppose you had the following output from LINGO for some linear program. Variable Value Reduced Cost X1 6.000000 0.400000 X2 0.000000 0.780000 X3 9.000000 0.120000 X4 0.000000 0.000000 Row Slack or Surplus Dual Price 1 0.000000 1.000000 2 0.000000 0.000000 3 2.000000 1.250000 4 1.000000 0.900000 5 0.000000 0.000000 The optimal value of the first decision variable is