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:已知點M(-2,5)在雙曲線y=上,則下列各點!

數學考題練習:已知點M(-2,5)在雙曲線y=上,則下列各點

更新時間:2024-01-12 16:37:32作者:貝語網校

已知點M(-2,5)在雙曲線y=上,則下列各點一定在該雙曲線上的是

A.(5,2)

B.(2,5)

C.(2,-5)

D.(-5,-2)

試題答案

C

試題解析

將M(-2,5)求出k的值,再將各項代入函數解析式看是否滿足,滿足則在,不滿足則不在.

解答:將M(-2,5)代入得:5=,k=-10,

∴函數解析式為:y=-.將各點代入得:

A、=-2≠2,故本選項錯誤;

B、=-5≠5,故本選項錯誤;

C、=5,故本選項正確;

D、=2≠-2,故本選項錯誤;

故選C.

點評:本題考查了反比例函數圖象上點的坐標特征,經過函數的某點一定在函數的圖象上.

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