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歡迎您訪問數學考題練習:在數軸上表示不等式x-1>3的解集是!

數學考題練習:在數軸上表示不等式x-1>3的解集是

更新時間:2024-01-12 16:34:38作者:貝語網校

在數軸上表示不等式x-1>3的解集是

A.一條直線

B.一條射線

C.一條線段

D.以上都不對

試題答案

D

試題解析

不等式的解集為x>4,在數軸上表示出來就是不包括端點的射線,所以D正確.

解答:不等式x-1>3的解為x>4.

∵解集x>4在數軸上表現為不包括端點的射線,

A、B、C都不正確.

故選D.

點評:注意數軸上空心和實心表示.

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