亚洲男人天堂av,国产一区二区久久精品,国产精品一区二区久久精品,国产精品久久久久久一区二区三区,五月婷婷在线观看视频,亚洲狠狠色丁香婷婷综合

歡迎您訪問數學考題練習:若點(m,n)在反比例函數上,則下列還有哪些點!

數學考題練習:若點(m,n)在反比例函數上,則下列還有哪些點

更新時間:2024-01-12 16:30:31作者:貝語網校

若點(m,n)在反比例函數上,則下列還有哪些點在反比例函數上?

A.(-m,n)

B.(-m,-n)

C.(m,-n)

D.()

試題答案

B

試題解析

根據k=xy求出k的值,再對四個選項進行逐一檢驗即可.

解答:∵點(m,n)在反比例函數上,∴k=mn,

A、錯誤,(-m)•n=-mn≠mn=k;

B、正確,(-m)•(-n)=mn=k;

C、錯誤,(m)•(-n)=-mn≠mn=k;

D、錯誤,•=≠mn=k.

故選B.

點評:本題考查了反比例函數圖象上點的坐標特征,只要點在函數的圖象上,則一定滿足函數的解析式.反之,只要滿足函數解析式就一定在函數的圖象上.

主站蜘蛛池模板: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |