(2014•泉州模拟)若对满足不等式组y≥1y≤2x2x+3y≤12
(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•泉州模拟)设实数x、y满足约束条件2x+y≤10x−y≤2x≥3,则z=x+y的最小值为( )
当x,y满足约束条件x≥0y≤x2x+y+k≤0(k
已知实数x,y满足约束条件x≥0y≤x2x+y-9≤0,则z=x+3y的最大值等于( )
已知点P(x,y)满足条件x≥0y≤x2x+y+k≤0
已知点P(x,y)满足条件x≥0y≤x2x+y+k≤0(k为常数),若z=x+3y的最大值为8,则k=( )
当实数x、y满足约束条件x≥0y≤x2x+y+k≤0 (k为常数)时,z=x+3y有最大值为12,则实数k的值
(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( )
(2012•浙江模拟)已知实数x,y满足约束条件2x−y≤0x−3y+5≥0y≥1
(2014•闸北区三模)设实数x,y满足不等式组y+x≤1y−x≤1y≥0
若实数x,y满足不等式组x-y+1≥0x+y-1≤0y≥0
(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( )