题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162109-61335.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162109-74647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162110-58729.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162110-23312.png)
解析
试题分析:分别作出函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162109-61335.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162109-74647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162110-96556.png)
根据图像可知:若有三个公共点,则需直线
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162109-61335.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162110-12165.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162111-93334.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162111-22135.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162111-88960.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162110-58729.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162110-23312.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162024-28275.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162024-72814.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162025-29548.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162025-77138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162025-64384.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162025-68898.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162026-75581.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162026-75581.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162025-68898.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162026-21428.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162026-73388.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162027-83079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162025-77138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162026-21428.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162027-11317.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162027-83079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162027-80206.png)
情的最高点
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162027-55225.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162027-63847.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162028-89695.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162028-59668.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162028-48632.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162028-58192.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162028-77832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162029-16002.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162029-61349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162029-27557.png)
(Ⅰ)请你帮老张算出
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162028-58192.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162028-77832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162029-61349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162027-55225.png)
(Ⅱ)老张如能在今天以
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162026-75581.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162027-55225.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162007-16310.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162007-42446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162007-17936.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162008-24695.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162008-95308.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162008-51574.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162008-51574.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162009-47113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162008-51574.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162009-40946.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162008-51574.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204162009-29321.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204161955-24393.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204161955-53731.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204161955-40843.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204161956-18037.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204161956-17569.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204161956-74965.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204161956-51155.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204161917-33785.png)
(Ⅰ)求分公司经营该产品一年的利润L(x)万元与每件产品的售价x元的函数关系式;
(Ⅱ)当每件产品的售价为多少元时,该产品一年的利润L(x)最大,并求出L(x)的最大值.
参考公式:
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204161917-33072.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204161918-55187.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204161903-15541.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204161903-21356.png)
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