max Z=2X+3x 从等值线看变化 S.t. x1+2x2 +X3 4 16 4x 12 X1,X2,x32X4,Xs>0 松弛变量x3,X4,x5≥0表达不等式方向 College of ManagementCollege of Management max z = 2x1+3x2 从等值线看变化 s.t. x1+2x2 ＋x3 ＝ 8 4x1 ＋x4 ＝ 16 4x2 ＋x5 ＝ 12 x1 , x2 , x3 , x4 , x5 ≥ 0 松弛变量x3 , x4 , x5 ≥ 0表达不等式方向