2011高一·四川成都·学业考试
1 . 函数
(
,
,
)的一系列对应值如下表:
(1)根据表格提供的数据求函数
的解析式;
(2)指出函数f(x)的图象是由函数
(
)的图象经过怎样的变化而得到的;
(3)令
,若g(x)在
时有两个零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab8fad391ac85fb1df2d2719c0ce12bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6af3e2115ce0aaf5b99ac70c4441d1.png)
![]() | … | ![]() | 0 | ![]() | ![]() | ![]() | ![]() | ![]() | … |
![]() | … | 0 | 1 | ![]() | 0 | -1 | ![]() | 0 | … |
(1)根据表格提供的数据求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bae56bf6c1802477e68ea1bf067b4bf.png)
(2)指出函数f(x)的图象是由函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/010a10c58b85b94cfd53444fec6c54f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c96dc0abfeb19df72deacea9ab1a38.png)
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