如图,某中学综合与实践小组要围成一个矩形菜园
,其中一边
靠墙,其余的三边
,
,
用总长为40米的栅栏围成.设矩形
的边
米,面积为S平方米.
(1)活动区面积S与
之间的关系式为____________ ;
(2)菜园
最大面积是____________ 平方米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c7a3d679b4dae63575903387a76ce45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/5/be090db5-4a34-4cf6-a600-6d244b2e8c6b.png?resizew=208)
(1)活动区面积S与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)菜园
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
更新时间:2023-11-15 15:46:31
|
【知识点】 图形问题(实际问题与二次函数)
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