(2012•安徽模拟)已知x,y满足不等式组x≥1x+y≤4x−y−2≤0
(2012•安徽模拟)已知实数x,y满足x−2y+2≥0y≥|x|
(2012•安徽模拟)实数对(x,y)满足不等式组x−y−2≤0,x+2y−5≥0,y−2≤0,若目标函数z=kx-y在
(2012•浙江模拟)已知实数x,y满足约束条件2x−y≤0x−3y+5≥0y≥1
(2012•商丘二模)设实数x,y满足不等式组y+x≤1y−x≤1y≥0
(2013•烟台一模)已知实数x,y满足不等式组2x−y≥0x+2y≥03x+y−5≤0,则2x+y的最大值是( )
(2012•浙江模拟)若实数x,y满足不等式组x−2y+5≥03−x≥0x+y≥0,则z=x+2y的最小值是( )
已知实数z、y满足不等式组x−2y+3≥03x+2y−7≤0x+2y−1≥0,则x-y的最小值为( )
(2013•温州二模)若实数x,y满足不等式组x+2y≥22x+y≤4x−y≥−1,则3|x-1|+y的最大值是( )
(2014•闸北区三模)设实数x,y满足不等式组y+x≤1y−x≤1y≥0
已知x、y满足不等式组y≥xx+y≤2x≥a
如果x,y满足不等式组x≤3x+y≥0x−y+5≥0
已知x,y满足不等式组 y≥x x+y≤2 x≥a(a