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1 . 已知抛物线
的准线方程为
,焦点为
为抛物线上不同的三点,
成等差数列,且点
在
轴下方,若
,则直线
的方程为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b65172437164e6d819b704ab28fa71c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb49231e548b2015d4199d96194e943.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a432648c32cf1adc1f3156025dd6d49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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2016-12-04更新
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1370次组卷
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7卷引用:2016届西藏日喀则一中高三下学期二模理科数学试卷