1 . 设
、
是抛物线
上的两个不同的点,
是坐标原点,若直线
与
的斜率之积为
,则下列结论正确的是( )
![](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/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602baac86c2b1668ecdfadc8a5948885.png)
A.![]() |
B.以![]() ![]() |
C.直线![]() ![]() |
D.点![]() ![]() ![]() |
您最近一年使用:0次
2020-07-12更新
|
510次组卷
|
6卷引用:江苏省南通市通州高级中学2020-2021学年高三上学期第五次阶段性测试数学试题
江苏省南通市通州高级中学2020-2021学年高三上学期第五次阶段性测试数学试题山东省泰安肥城市2020届高三适应性训练(三)数学试题(已下线)专题2.6 直线与圆锥曲线的位置关系(A卷基础篇)-2020-2021学年高二数学选择性必修第一册同步单元AB卷(新教材人教B版)重庆市凤鸣山中学2021届高三下学期第一次月考数学试题广东省揭阳市普宁市华侨中学2021-2022学年高二下学期第三次月考数学试题山东省青岛市青岛第十七中学2020-2021学年高三上学期10月月考数学试题
名校
解题方法
2 . 已知直线
与抛物线
相交于
、
两点,且
,直线
经过
的焦点.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
________ ,若
为
上的一个动点,设点
的坐标为
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaacc570ace4399d09466d347c8ecdbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e27ca8752789a82ffcdb3b1c18cfd5.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/df5be1440d099f464ef46dee39de6010.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
您最近一年使用:0次
2020-07-05更新
|
589次组卷
|
6卷引用:江苏省南通市通州区金沙中学2020-2021学年高二上学期12月份阶段测试数学试题
江苏省南通市通州区金沙中学2020-2021学年高二上学期12月份阶段测试数学试题山东省2020届普通高等学校招生全国统一考试数学试题模拟卷(一)广东省深圳高级中学2021届高三上学期10月月考数学试题(已下线)2021届高三数学新高考“8+4+4”小题狂练(8)(已下线)热点09 解析几何-2021年高考数学【热点·重点·难点】专练(山东专用)(已下线)“8+4+4”小题强化训练(51)圆锥曲线的综合问题(2)最值、范围问题-2022届高考数学一轮复习(江苏等新高考地区专用)
名校
解题方法
3 . 已知抛物线
的焦点为
,
是抛物线在第一象限的一点,且点
到抛物线的对称轴和准线的距离相等,则点
的坐标为______ ;
为坐标原点,
交抛物线的准线于点
,则三角形
内切圆的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ac6188f40414f76bc754dee4a75809.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa62c303748c1321615c2c0a95b4d533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6c71a0da6a878a5b12bf8a8e784645.png)
您最近一年使用:0次
2020-06-23更新
|
116次组卷
|
2卷引用:江苏省南通市海门市包场高级中学2019-2020学年高二下学期新高考第一次适应性考试数学试题
4 . 如图,在平面直角坐标系
中,已知抛物线
的焦点为
,准线与
轴的交点为
.过点
的直线与抛物线相交于
、
两点,
、
分别与
轴相交于
、
两点,当
轴时,
.
![](https://img.xkw.com/dksih/QBM/2020/6/3/2476517469691904/2477229342867456/STEM/94f0a500-2d73-434d-a2be-d9f008e8e5ef.png?resizew=221)
(1)求抛物线的方程;
(2)设
的面积为
,
面积为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/24624dffd30b66a5e4de57362b32b2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f713da7dce54965bbef060ad2b507e51.png)
![](https://img.xkw.com/dksih/QBM/2020/6/3/2476517469691904/2477229342867456/STEM/94f0a500-2d73-434d-a2be-d9f008e8e5ef.png?resizew=221)
(1)求抛物线的方程;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f14b86b8bf99386fc939c9c12b1355ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c48e42ce4fd7e6da946bf2b7b22200db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
您最近一年使用:0次
2020-06-04更新
|
495次组卷
|
2卷引用:江苏省南通市2020届高三下学期第三次调研测试数学试题
解题方法
5 . 如图,在平面直角坐标系
中,已知抛物线C的顶点在坐标原点,焦点在x轴上,且过点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/09b43718-184f-4fbe-a82f-7e9f4f3365fe.png?resizew=212)
(1)求抛物线C的标准方程;
(2)若抛物线C的准线交x轴于点A,过点
作直线l,与抛物线C相切于点P,过点A作l的平行线,与抛物线C交于点M,N,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86022205a7487439dd8d0897cd3bf19.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/09b43718-184f-4fbe-a82f-7e9f4f3365fe.png?resizew=212)
(1)求抛物线C的标准方程;
(2)若抛物线C的准线交x轴于点A,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42f05b013e4b7166cbc87c5a83d6a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
您最近一年使用:0次
6 . 在平面直角坐标系xOy中,已知抛物线
的准线方程为
.
(1)求p的值;
(2)过抛物线C的焦点的直线l交抛物线C于点A,B,交抛物线C的准线于点P,若A为线段PB的中点,求线段AB的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df40ba57bb5819b4aaa38d514500052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
(1)求p的值;
(2)过抛物线C的焦点的直线l交抛物线C于点A,B,交抛物线C的准线于点P,若A为线段PB的中点,求线段AB的长.
您最近一年使用:0次
2020-05-14更新
|
94次组卷
|
2卷引用:2020届江苏省高三高考全真模拟(五)数学试题
7 . 已知抛物线
的焦点为
,其准线
与
轴相交于点
,过点
作斜率为
的直线与抛物线
相交于
,
两点,若
,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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cc4908fa31c032d29c1b1057d7dbaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-05-04更新
|
1028次组卷
|
4卷引用:江苏省南通市海安高级中学2020-2021学年高二下学期期末数学试题
8 . 如图,已知抛物线
,在
轴正半轴上有一点
,过点
作直线
,
分别交抛物线于点
,过点
作
垂直于
轴分别交
于点
.当
,直线
的斜率为1时,
.
![](https://img.xkw.com/dksih/QBM/2020/4/30/2452884101529600/2453300549115904/STEM/7596a034dda44c8b9db39560c88a4c29.png?resizew=157)
(1)求抛物线的方程;
(2)判断
是否为定值,若是,求出此定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a380c1351441fff3963c4a507ef74078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d93949d8a15aca4e79cedb978590571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9a783310e84a3256e45dc8148ba660.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://img.xkw.com/dksih/QBM/2020/4/30/2452884101529600/2453300549115904/STEM/7596a034dda44c8b9db39560c88a4c29.png?resizew=157)
(1)求抛物线的方程;
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b68def30c4cc7a5961e5780d025a1ef.png)
您最近一年使用:0次
名校
解题方法
9 . 已知双曲线
(
,
)的一条渐近线方程为
,点
在双曲线上;抛物线
(
)的焦点F与双曲线的右焦点重合.
(1)求双曲线和抛物线的标准方程;
(2)过焦点F作一条直线l交抛物线于A,B两点,当直线l的斜率为
时,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d532ce76942846df88c6f66112e50f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef4c01e240c731837600b3dff470b15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
(1)求双曲线和抛物线的标准方程;
(2)过焦点F作一条直线l交抛物线于A,B两点,当直线l的斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2020-03-25更新
|
291次组卷
|
3卷引用:江苏省南通市海门中学2019-2020学年高二上学期期中数学试题
解题方法
10 . 在平面直角坐标系
中,已知直线
的参数方程为
,(
为参数),曲线
的参数方程为
(
为参数),若直线
与曲线
相交于
两点,求弦
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b0f616fd5346001bf5ee815fd4cab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8765ee0f60ff42e45be23420d08472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次