Question

設(shè)點(diǎn)A與點(diǎn)B關(guān)于x軸對(duì)稱，點(diǎn)A與點(diǎn)C關(guān)于y軸對(duì)稱，則點(diǎn)B與點(diǎn)C（　�。�

• A、關(guān)于x軸對(duì)稱
• B、關(guān)于y軸對(duì)稱
• C、關(guān)于原點(diǎn)對(duì)稱
• D、既關(guān)于x軸對(duì)稱，又關(guān)于y軸對(duì)稱

Answer 1

考點(diǎn)：關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)

專題：

分析：根據(jù)關(guān)于x軸對(duì)稱的點(diǎn)的坐標(biāo)規(guī)律：橫坐標(biāo)相同，縱坐標(biāo)互為相反數(shù)；關(guān)于原點(diǎn)的對(duì)稱點(diǎn)，橫縱坐標(biāo)都變成相反數(shù)；關(guān)于y軸對(duì)稱的點(diǎn)的坐標(biāo)規(guī)律：橫坐標(biāo)互為相反數(shù)，縱坐標(biāo)相同，可得答案．

解答：解：點(diǎn)A與點(diǎn)B關(guān)于x軸對(duì)稱，點(diǎn)A與點(diǎn)C關(guān)于y軸對(duì)稱，則點(diǎn)B與點(diǎn)C原點(diǎn)對(duì)稱，
故選：C．

點(diǎn)評(píng)：本題考查了關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)，關(guān)于x軸對(duì)稱的點(diǎn)的坐標(biāo)規(guī)律：橫坐標(biāo)相同，縱坐標(biāo)互為相反數(shù)；關(guān)于原點(diǎn)的對(duì)稱點(diǎn)，橫縱坐標(biāo)都變成相反數(shù)；關(guān)于y軸對(duì)稱的點(diǎn)的坐標(biāo)規(guī)律：橫坐標(biāo)互為相反數(shù)，縱坐標(biāo)相同．