Question

^{在平面直角坐標(biāo)系中，點(diǎn) P（﹣2，3）關(guān)于 x 軸對稱的點(diǎn) P}1 ^{的坐標(biāo)是                                                                                                                                                           ．}

Answer 1

 ^P1^{（﹣2，﹣3）                                                                                                                             ．}

【考點(diǎn)】關(guān)于 x 軸、y 軸對稱的點(diǎn)的坐標(biāo)．

^{【分析】根據(jù)關(guān)于 x 軸對稱的點(diǎn)，橫坐標(biāo)相同，縱坐標(biāo)互為相反數(shù)；則 P}1 ^{的坐標(biāo)為（﹣2，﹣3）．}

^{【解答】解：∵P（﹣2，3）與 P}1 ^{關(guān)于 x 軸對稱，}

^∴橫坐標(biāo)相同，縱坐標(biāo)互為相反數(shù)，

^∴P1 ^{的坐標(biāo)為（﹣2，﹣3）．} 故答案為（﹣2，﹣3）．

【點(diǎn)評(píng)】考查了關(guān)于 x 軸、y 軸對稱的點(diǎn)的坐標(biāo)，解決本題的關(guān)鍵是掌握好對稱點(diǎn)的坐標(biāo)規(guī)律，注 意結(jié)合圖象，進(jìn)行記憶和解題．