名校
解题方法
1 . 已知抛物线
的顶点在原点,对称轴为坐标轴,且过
,
,
,
四点中的两点.
(1)求抛物线
的方程;
(2)若直线
与抛物线
交于
两点,与抛物线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea66948882a4f947df1c57cedbd53db9.png)
交于
两点,
在第一象限,
在第四象限,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da61a8fc8f424929e9bf36622f1ca74f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d483dd3a65702ed0cd7df766300d03b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4065ed9c98391f4cfe89319b6e65b44f.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea66948882a4f947df1c57cedbd53db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a6e2e2fd460de8f49b81554b1ae36e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7833fd11cfe6ef6e449ed25fdd0f61df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/941178d4d92eb2c81ae6ffaeb651d9b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cff8d039dd1991c12d2de58d1dc2937a.png)
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2023-11-10更新
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703次组卷
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4卷引用:青海省西宁市部分学校2023-2024学年高二上学期期末联考数学试题