题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065108-42729.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065108-23024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065108-72337.png)
①函数
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-24434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-61138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-78741.png)
③函数
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-24434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-24434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-24235.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-49061.png)
答案
解析
试题分析:因为
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065108-72337.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065110-99467.png)
所以由图可知:①函数
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-24434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-61138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065110-37541.png)
②方程
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-78741.png)
③函数
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-24434.png)
④函数
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-24434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-24235.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065109-49061.png)
点评:解此题的关键是:根据新定义画出
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065108-72337.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065102-16403.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065102-99742.jpg)
(1)作出函数
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065102-78904.png)
(2)写出函数
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065102-78904.png)
(3)判断函数
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065102-78904.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065051-27340.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065051-29244.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065045-57328.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065045-25944.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065032-64895.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065032-33795.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065032-72998.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065023-40991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200206/20200206065023-63646.jpg)
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