Question

2．點(diǎn)（-$\sqrt{2}$，5$\sqrt{2}$）關(guān)于x軸對(duì)稱的點(diǎn)的坐標(biāo)是（-$\sqrt{2}$，-5$\sqrt{2}$）．

Answer 1

分析 根據(jù)關(guān)于x軸的對(duì)稱點(diǎn)的坐標(biāo)特點(diǎn)：橫坐標(biāo)不變，縱坐標(biāo)互為相反數(shù)可得答案．

解答 解：點(diǎn)（-$\sqrt{2}$，5$\sqrt{2}$）關(guān)于x軸對(duì)稱的點(diǎn)的坐標(biāo)是：（-$\sqrt{2}$，-5$\sqrt{2}$），
故答案為：（-$\sqrt{2}$，-5$\sqrt{2}$）．

點(diǎn)評(píng) 此題主要考查了關(guān)于x軸的對(duì)稱點(diǎn)的坐標(biāo)，關(guān)鍵是掌握點(diǎn)的坐標(biāo)的變化規(guī)律．