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歡迎您訪問數學考題練習:下列各圖中,y不是x函數的圖象是!

數學考題練習:下列各圖中,y不是x函數的圖象是

更新時間:2024-01-12 16:35:59作者:貝語網校

下列各圖中,y不是x函數的圖象是

A.

B.

C.

D.

試題答案

C

試題解析

根據函數的意義即可作出判斷.

解答:根據函數定義可知,對于自變量x的任何值,y都有唯一的值與之相對應,所以C不正確.

故選C.

點評:本題主要考查了函數圖象的讀圖能力.要能根據函數圖象的性質和圖象上的數據分析得出函數的類型和所需要的條件,結合實際意義得到正確的結論.

函數的意義反映在圖象上簡單的判斷方法是:做垂直x軸的直線在左右平移的過程中與函數圖象只會有一個交點.

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