名校
1 . 已知点
,动圆
过点
,且与
相切,记动圆圆心
点的轨迹为曲线
,则曲线
的方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63309dbc3612815f6dbdee23d9a10adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 已知抛物线
的焦点为
为
上一点,
为坐标原点,当
时,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d945b17623cd01fa90180c4d4fca91f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fdc7f7bc6da79f6dfda4b4b914d1f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ab3bbeeae1973ece0a8224d7f22bc6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
A.4 | B.3 | C.2 | D.1 |
您最近一年使用:0次
2024-05-29更新
|
621次组卷
|
2卷引用:湖南省2024届高考数学临门押题考试试卷
3 . 已知直线
与抛物线
有唯一交点,则
的准线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0f2ef0a60be68075ef22fc4159291c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32ff6618eb355117cafa18204f90c6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 已知抛物线
的焦点为
,直线
与抛物线
在第一象限交于点
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b584ef432bc03a383ed40ca2e120e45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995e31d67e547f5129de48dac3fa688e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
5 . 抛物线
上一点
到其焦点的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf210c8c9e83e70f2d3ede1e18a5f3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a42451bdbef6c82dbaf8e06f0614794.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-04-10更新
|
217次组卷
|
2卷引用:湖南省张家界市民族中学2023-2024学年高二下学期入学考试数学试题
名校
解题方法
6 . 抛物线
的焦点
为二次函数
的顶点.
为
上点,
到直线
的距离为
且
,点
在直线
的上方,则
上点
到
距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b629bea8e22de9bfc49158e2289871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4244bfef8b7519109dc7f8da9add2dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43cc7b7dbd496125f52b5f1f44b8ade9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9acf943f6c4d74fb117a7cf42ca0b94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c40e6f3bf3131c3031a2e4d1e674e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
A.3 | B.2 | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
7 . 已知抛物线
上一点
的横坐标为4,则点
到焦点的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/088fcdd595455906a1a7080d630611f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.4 | B.2 | C.6 | D.8 |
您最近一年使用:0次
2024-04-02更新
|
707次组卷
|
5卷引用:湖南省长沙市南雅中学2023-2024学年高二下学期第一次月考数学试题
湖南省长沙市南雅中学2023-2024学年高二下学期第一次月考数学试题江西八所重点中学2024届高三联考考后提升数学模拟训练一广东省广州市执信中学2023-2024学年高二下学期期中考试数学试题上海市向明中学2023-2024学年高二下学期期中考试数学试题(已下线)专题02圆锥曲线全章复习攻略--高二期末考点大串讲(沪教版2020选修一)
8 . 已知抛物线
的焦点为
,过点
的直线与抛物线交于
两点(点
在第一象限),
(
为坐标原点),
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e59e07e7f6425b2f93fe1e4f1295ee41.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bec10c94a4cea43cd793d4439fe5f091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56bbafa889700c6764ebc7fc1a42cd91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e59e07e7f6425b2f93fe1e4f1295ee41.png)
您最近一年使用:0次
名校
解题方法
9 . 已知抛物线
的焦点为
,若
是该抛物线上一点,点
,则
的最小值______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/688d1010f707758e1da7336f86c2c8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff21811ea84135ab28112ae687268f3.png)
您最近一年使用:0次
2024-03-22更新
|
650次组卷
|
3卷引用:湖南省衡阳市衡阳县第二中学2023-2024学年高二下学期4月期中考试数学试题
名校
解题方法
10 . 已知点,抛物线
的焦点为
为抛物线上一动点,当
运动到
时,
,则
的最小值为( )
A.6 | B.5 | C.4 | D.3 |
您最近一年使用:0次