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歡迎您訪問數學考題練習:已知P點在第一象限內,P點到x軸的距離為3,到!

數學考題練習:已知P點在第一象限內,P點到x軸的距離為3,到

更新時間:2024-01-12 16:24:54作者:貝語網校

已知P點在第一象限內,P點到x軸的距離為3,到y軸的距離為5,則P點的坐標為

A.(3,5)

B.(5,3)

C.(-3,5)

D.(3,-5)

試題答案

B

試題解析

根據到x軸的距離得到點P的縱坐標的絕對值,到y軸的距離得到橫坐標的絕對值,進而根據所在象限判斷出具體坐標即可.

解答:∵P點到x軸的距離為3,到y軸的距離為5,

∴P點縱坐標的絕對值為3,橫坐標的絕對值為5,

又∵點P在第一象限,

∴點P的坐標為(5,3).

故選B.

點評:本題主要考查了第一象限內點的坐標的符號,點到x軸的距離為點的縱坐標的絕對值,到y軸的距離為點的橫坐標的絕對值.

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