问题2 policy urban suburban rural 如何趣邻下列语句 build roads -2 5 3 gun control 8 2 -5 Although we cannot easily graph farm subsidies 0 0 10 linear programs with more than two gasoline tax 10 0 -2 variables,the same intuition holds.If we have three variables,then each constraint corresponds to a half- space in three-dimensional space. The intersection of these half-spaces forms the feasible region. minimize X1 + X2 + X3 + X4 subject to -2x1 8x2 + 0x3 + 10x4 2 50 5x1 2x2 + 0x3 + 0x4 ≥ 100 3x1 5x2 + 10x3 2x4 ≥ 25 X1,X2,X3,X4 ≥ 0Although we cannot easily graph linear programs with more than two variables, the same intuition holds. If we have three variables, then each constraint corresponds to a half￾space in three-dimensional space. The intersection of these half-spaces forms the feasible region