2024·全国·模拟预测
1 . 已知
为抛物线
的焦点,过点
的直线与
交于A,B两点,过点
作
,与
的准线交于点
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d239af265e1a97e1ecddf0912169ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7eead6d0ec55a867e6444433ac515f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
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解题方法
2 . 已知点
分别是抛物线
和圆
上的动点,若抛物线
的焦点为
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce57ee60a8cd96ec9f44253ef8980022.png)
![](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/4bde83919c599dd8c17ddf7b27db1a82.png)
A.6 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
3 . 已知
为拋物线
的焦点,
为坐标原点,
为
的准线
上一点,直线
的斜率为
的面积为
.已知
,设过点
的动直线与抛物线
交于
两点,直线
与
的另一交点分别为
.
(1)求拋物线
的方程;
(2)当直线
与
的斜率均存在时,讨论直线
是否恒过定点,若是,求出定点坐标;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b527ec9f92467b8f24554a2a67ee987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53056027b7bd6a11eb98ac18c8fc8e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8d1ca7682da10dc7f36e858593d51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204394fe44c07546fa1aea980fffe557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec56d586906ebaaa3c32c85a415f4c69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/b0bbf827-b843-46f9-a0fe-bc5bb3df8204.png?resizew=165)
(1)求拋物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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2024-03-10更新
|
1026次组卷
|
3卷引用:第5讲:定点、定值、定直线问题【讲】
解题方法
4 . 已知抛物线
的焦点为
,准线
,直线
过点
且与抛物线
交于
,
两点,
为坐标原点,若
,则
的面积为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48054662c2d9b0dca46f5ae482cef509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/356b058d2a753793ff2eb52430194dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103efa8eeab40ce1990e3909358b2268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
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名校
解题方法
5 . 已知抛物线
的焦点为F,若
的三个顶点都在抛物线E上,且满足
,则称该三角形为“核心三角形”.
(1)设“核心三角形
”的一边
所在直线的斜率为2,求直线
的方程;
(2)已知
是“核心三角形”,证明:
三个顶点的横坐标都小于2.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f4fb72e39d79b7a0cd892fa5fa34bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d856ed2306a7cc3e64a1edfb84627aa5.png)
(1)设“核心三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2024-02-10更新
|
1622次组卷
|
5卷引用:最新模拟重组精华卷2 -模块一 各地期末考试精选汇编
6 . 已知O为坐标原点,F为抛物线
:
的焦点,过点F且倾斜角为
的直线
交C于A、B两点(其中点A在第一象限),过线段
的中点P作垂直于抛物线准线的直线,与准线交于点N,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d255a656d442bd0046aefa19b9e30bc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.C的准线方程为![]() | B.![]() |
C.三角形![]() ![]() | D.![]() |
您最近一年使用:0次
7 . 已知抛物线
的焦点为F,准线与x轴的交点为P,过点F的直线与抛物线交于点M,N,过点P的直线与抛物线交于点A,B,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-01-17更新
|
426次组卷
|
2卷引用:2024届高三新高考改革数学适应性练习(5)(九省联考题型)
2024·全国·模拟预测
8 . 已知
为坐标原点,椭圆
的上焦点
是抛物线
的焦点,过焦点
与抛物线对称轴垂直的直线交椭圆
于
两点,且
,过点
的直线
交椭圆
于
两点.
(1)求椭圆
的标准方程;
(2)若点
,记
的面积为
的面积为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef404abca1f78da130a38849f58559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adbd62cb6779bc3b445dcbef97e3bf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c841c11140900fd14e2fda2dda42a506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c02f5667d9bcb19ef19750a65b1e7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97fb96d52f1ab7cd9c4e9427838bd6e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729684f958ad60b8e905fe1e1da53c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e177f4f96900be94ee7e1db0b4169f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4d8e7425fe8bafd8e04fd9b8bbbe45.png)
您最近一年使用:0次
2024-01-05更新
|
1179次组卷
|
7卷引用:2024年普通高等学校招生全国统一考试数学文科预测卷(七)
(已下线)2024年普通高等学校招生全国统一考试数学文科预测卷(七)(已下线)江苏省泰州市兴化市2023-2024学年高二上学期期末数学试题广东省广州市中山大学附中2024届高三上学期第一次调研数学试题湖南省长沙市立信中学2023-2024学年高二上学期期末考试数学试题宁夏回族自治区银川一中2024届高三下学期第一次模拟考试数学(理)试题(已下线)专题 7 面积最值 坐标思想(高考试题一题多解)(已下线)黄金卷06(2024新题型)
2024·全国·模拟预测
9 . 已知M,N是抛物线上两点,焦点为F,抛物线上一点
到焦点F的距离为
,下列说法正确的是
①;
②若,则直线MN恒过定点
;
③若的外接圆与抛物线C的准线相切,则该圆的半径为
;
④若,则直线MN的斜率为
.
您最近一年使用:0次
10 . 已知抛物线
的焦点为
,准线为
上的点
到焦点
的距离为3,过
的直线
与抛物线交于
两点(点
在第一象限),过线段
的中点
作
轴的垂线,交抛物线于点
,交
的准线
于点
为坐标原点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585348bf4309a13c9bfc8d65ffd3422e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a875bc81f2e72e14c334417e7b694e57.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/13dea1bd3d0dd84b8b6f6ff634c5600c.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de10f0277f23e757be5bf05d0e1b14bc.png)
A.![]() |
B.若![]() ![]() ![]() |
C.![]() |
D.![]() ![]() |
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