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歡迎您訪問每日一練:下列各點中,在第三象限的點是!

每日一練:下列各點中,在第三象限的點是

更新時間:2024-01-12 12:52:10作者:貝語網校

下列各點中,在第三象限的點是

A.(-4,3)

B.(-4,-3)

C.(4,3)

D.(4,-3)

試題答案

B

試題解析

分析:點在第三象限的條件是:橫坐標是負數,縱坐標是負數,即可判斷.

解答:A、點在第二象限,故錯誤;

B、點在第三象限,故正確;

C、點在第一象限,故錯誤;

D、點在第四象限,故錯誤.故選B.

點評:本題考查了各象限內點的坐標的符號特征以及解不等式,記住各象限內點的坐標的符號是解決的關鍵,四個象限的符號特點分別是:第一象限(+,+);

第二象限(-,+);

第三象限(-,-);

第四象限(+,-).

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