函數(shù)的圖象

1. A.
   關(guān)于y軸對(duì)稱
2. B.
   關(guān)于原點(diǎn)對(duì)稱
3. C.
   關(guān)于x軸對(duì)稱
4. D.
   關(guān)于直線y=x對(duì)稱

函數(shù)的圖象（   ）

   A.關(guān)于y軸對(duì)稱                     B.關(guān)于直線對(duì)稱   

C.關(guān)于原點(diǎn)對(duì)稱                     D.關(guān)于y=x對(duì)稱

直線x-2y+3=0關(guān)于X軸對(duì)稱的直線的方程是                             (   )

A  x+2y-3=0      B x+2y+3=0   C  2x-y-3=0      D 2x-y+3=0