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歡迎您訪問數(shù)學(xué)考題練習(xí):在平面直角坐標(biāo)系中,點(diǎn)(3,3)所在的象限是!

數(shù)學(xué)考題練習(xí):在平面直角坐標(biāo)系中,點(diǎn)(3,3)所在的象限是

更新時間:2024-01-12 16:33:42作者:貝語網(wǎng)校

在平面直角坐標(biāo)系中,點(diǎn)(3,3)所在的象限是

A.第一象限

B.第二象限

C.第三象限

D.第四象限

試題答案

A

試題解析

應(yīng)先判斷出點(diǎn)的橫縱坐標(biāo)的符號,進(jìn)而判斷點(diǎn)所在的象限.

解答:∵點(diǎn)的橫坐標(biāo)3>0,縱坐標(biāo)3>0,∴點(diǎn)(3,3)在第一象限.

故選A.

點(diǎn)評:本題主要考查了平面直角坐標(biāo)系中各個象限的點(diǎn)的坐標(biāo)的符號特點(diǎn).四個象限的符號特點(diǎn)分別是:第一象限(+,+);第二象限(-,+);第三象限(-,-);第四象限(+,-).

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