名校
1 . 销售甲、乙两种商品所得利润分别是
万元,它们与投入资金
万元的关系分别为
,
,(其中
都为常数),函数
对应的曲线
、
如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/5d83a2bc-8732-4d68-b200-d2708598ed7a.png?resizew=229)
(1)求函数
与
的解析式;
(2)若该商场一共投资4万元经销甲、乙两种商品,求该商场所获利润的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7404d4aa0f0bcfe7ebf45d3eeab3cdb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a389a9315e0013773915dd2a80fc86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6f57580a4afc125877b7ff29e95695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e262af45c35bb6b11d0b15641d43ee5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7404d4aa0f0bcfe7ebf45d3eeab3cdb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/5d83a2bc-8732-4d68-b200-d2708598ed7a.png?resizew=229)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
(2)若该商场一共投资4万元经销甲、乙两种商品,求该商场所获利润的最大值.
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2019-11-15更新
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8卷引用:2020届四川省成都市第七中学高三第5次阶段性考试数学试题