1 . 已知抛物线关于
轴对称,它的顶点在坐标原点
,并且经过点
.若点
到该抛物线焦点的距离为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeac5175101c8d3fbdefea179f41c992.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab13c94d74b334cb268a31ea13a595e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeac5175101c8d3fbdefea179f41c992.png)
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2016-12-04更新
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4卷引用:2015-2016学年四川省攀枝花十五中高二上学期期中理科数学试卷
2015-2016学年四川省攀枝花十五中高二上学期期中理科数学试卷2015-2016学年四川省攀枝花市十五中高二上学期期中理科数学试卷2014-2015学年山西省大同一中高二上学期期末理科数学试卷(已下线)专题9.7 抛物线(讲)-江苏版《2020年高考一轮复习讲练测》