概要: 时,在对称轴 ( )左侧, 值随 值的增大而减少;在对称轴( )右侧; 的值随 值的增大而增大。当 时,上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] 下一页
上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] 下一页