點(diǎn)A(3,-2)關(guān)于y軸對(duì)稱(chēng)的點(diǎn)的坐標(biāo)是
(-3,-2)
(-3,-2)
;點(diǎn)A關(guān)于原點(diǎn)對(duì)稱(chēng)的點(diǎn)的坐標(biāo)是
(-3,2)
(-3,2)
.點(diǎn)A關(guān)于x軸對(duì)稱(chēng)的點(diǎn)的坐標(biāo)為
(3,2)
(3,2)
分析:根據(jù)關(guān)于關(guān)于x軸對(duì)稱(chēng)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);關(guān)于原點(diǎn)對(duì)稱(chēng)的點(diǎn)的坐標(biāo)特點(diǎn):兩個(gè)點(diǎn)關(guān)于原點(diǎn)對(duì)稱(chēng)時(shí),它們的坐標(biāo)符號(hào)相反;關(guān)于y軸對(duì)稱(chēng)點(diǎn)的坐標(biāo)特點(diǎn):橫坐標(biāo)互為相反數(shù),縱坐標(biāo)不變,分別寫(xiě)出答案即可.
解答:解:點(diǎn)A(3,-2)關(guān)于y軸對(duì)稱(chēng)的點(diǎn)的坐標(biāo)是(-3,-2);
點(diǎn)A關(guān)于原點(diǎn)對(duì)稱(chēng)的點(diǎn)的坐標(biāo)是(-3,2);
點(diǎn)A關(guān)于x軸對(duì)稱(chēng)的點(diǎn)的坐標(biāo)為(3,2);
故答案為:(-3,-2);(-3,2);(3,2).
點(diǎn)評(píng):此題主要考查了關(guān)于x、y軸對(duì)稱(chēng)點(diǎn)的坐標(biāo)特點(diǎn),關(guān)于原點(diǎn)對(duì)稱(chēng)的點(diǎn)的坐標(biāo)特點(diǎn),關(guān)鍵是熟練掌握坐標(biāo)的變化規(guī)律.
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