解题方法
1 . 如图,四边形
是高为2的等腰梯形.![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c42c244f99cc8ad554722aad404d50fd.png)
(1)求两条腰OC,AB所在直线方程;
(2)记等腰梯形
位于直线
左侧的图形的面积为
.
①当
时,求图形面积
的值;
②试求函数
的解析式,并画出函数
的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c42c244f99cc8ad554722aad404d50fd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/6/a9712d0a-34e3-45f7-a919-c6667aba1087.png?resizew=180)
(1)求两条腰OC,AB所在直线方程;
(2)记等腰梯形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e816d46ed0afafd8c8bf59ca54c244aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f81f2a0196b06fc56a7e8a6463d179.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8493a0cd10d3d0399173c04163740a38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f81f2a0196b06fc56a7e8a6463d179.png)
②试求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c6a92051e76ee7f7b6efa1cd5669f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c6a92051e76ee7f7b6efa1cd5669f6.png)
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