更新時(shí)間:2024-01-12 14:01:39作者:貝語網(wǎng)校
點(diǎn)P(3,-2)關(guān)于原點(diǎn)的對(duì)稱點(diǎn)坐標(biāo)是
A.(-3,2)
B.(3,2)
C.(-3,-2)
D.(3,-2)
A
根據(jù)“平面直角坐標(biāo)系中任意一點(diǎn)P(x,y),關(guān)于原點(diǎn)的對(duì)稱點(diǎn)是(-x,-y),即關(guān)于原點(diǎn)的對(duì)稱點(diǎn),橫縱坐標(biāo)都變成相反數(shù)”解答.
解答:根據(jù)關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)的特點(diǎn),
∴點(diǎn)A(3,-2)關(guān)于原點(diǎn)過對(duì)稱的點(diǎn)的坐標(biāo)是(-3,2).
故答案為(-3,2).
故選A.
點(diǎn)評(píng):本題主要考查了關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)的特點(diǎn),此題比較簡單,易于掌握.