2011·安徽宿州·一模
1 . 右图给出了红豆生长时间
(月)与枝数
(枝)的散点图:那么“红豆生南国,春来发几枝.”的红豆生长时间与枝数的关系用下列哪个函数模型拟合最好?
![](https://img.xkw.com/dksih/QBM/2012/8/28/1570983754792960/1570983759953920/STEM/43897384082d4172871c85b26076371e.png)
![](https://img.xkw.com/dksih/QBM/2012/8/28/1570983754792960/1570983759953920/STEM/c77de5902c954bf28e606aec276db0c8.png)
![](https://img.xkw.com/dksih/QBM/2012/8/28/1570983754792960/1570983759953920/STEM/47063067f1ef4c3aa55e36e4a6911ac4.png)
![](https://img.xkw.com/dksih/QBM/2012/8/28/1570983754792960/1570983759953920/STEM/43897384082d4172871c85b26076371e.png)
A.指数函数:![]() | B.对数函数:![]() |
C.幂函数:![]() | D.二次函数:![]() |
您最近一年使用:0次
真题
2 . 已知函数
在R上满足
,则曲线
在
点
处的切线方程是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://img.xkw.com/dksih/QBM/2012/8/29/1570988782084096/1570988787245056/STEM/b52bc42bd43b44eeabc9dd7aee5a4bad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次