如图, 等边三角形
边长为
, 点 D在边
上(不与A,B重合),过点D作
交
于点E.当
时,
的周长比
的周长减少了
,面积减少了
.当x在一定范围内变化时,
和
都随x的变化而变化,则
与x,
与x满足的函数关系分别是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe9f7abf7bcf4e1aa2579cd191d7761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d021981c03e75b1a246d899dcc64656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6959d41b68667c43ac1e20ff08432f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38703a1be638e22eb5d06e315fbff406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0d183188a421796a7c422de946f529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/49e775a9-f8ab-42b4-97bc-4fa6e5f39087.png?resizew=156)
A.反比例函数关系,一次函数关系 | B.反比例函数关系,二次函数关系 |
C.一次函数关系,一次函数关系 | D.一次函数关系,二次函数关系 |
更新时间:2024-02-26 11:18:39
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【推荐1】如图,
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【推荐2】如图,A点在半径为2的⊙O上,过线段OA上的一点P作直线l,与⊙O过A点的切线交于点B,且∠APB=60°,设OP= x,则△PAB的面积y关于x的函数图像大致是()
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