名校
解题方法
1 . 已知抛物线x2=2py(p>0),其焦点F到准线的距离为1.过F作抛物线的两条弦AB和CD(点A,C在第一象限),且M,N分别是AB,CD的中点.
(1)若AB
CD,求
面积的最小值;
(2)设直线AC的斜率为kAC,直线BD的斜率为kBD,且kAC+4kBD=0,求证:直线AC过定点,并求此定点.
(1)若AB
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecfb02e157819a2bdd0f2790cbc825e9.png)
(2)设直线AC的斜率为kAC,直线BD的斜率为kBD,且kAC+4kBD=0,求证:直线AC过定点,并求此定点.
您最近一年使用:0次
2 . 已知点
是抛物线C:
上的点,F为抛物线的焦点,且
,直线l:
与抛物线C相交于不同的两点A,B.
(1)求抛物线C的方程;
(2)若
,求k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dda1d7b3982b398ffa32f3dbfdfe787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6adb75287b16e98f903572a19d553c58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a0328dde917c3e6d0f1ca9ddb6027b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d0aafd52e26c241c46d0206f42f415.png)
(1)求抛物线C的方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ed9d97b8745ed1c15349ea3fffc299.png)
您最近一年使用:0次
2020-03-10更新
|
1235次组卷
|
12卷引用:福建省南平市2019-2020学年高二上学期期末数学试题
福建省南平市2019-2020学年高二上学期期末数学试题陕西省咸阳市2019-2020学年高二下学期期末数学(文)试题江苏省徐州市沛县2020-2021学年高二上学期第一次学情调研数学试题(已下线)【新教材精创】3.3.2+抛物线的简单几何性质(1)+导学案-人教A版高中数学选择性必修第一册湖南省岳阳市平江县第一中学2020-2021学年高二上学期期末数学试题(已下线)专题20 抛物线的简单几何性质(核心素养练习)-【新教材精创】2020-2021学年高二数学新教材知识讲学(人教A版选择性必修第一册)广西玉林市育才中学2020-2021学年高二12月月考数学(理)试题广东省化州市第三中学2021-2022学年高二上学期12月月考数学试题新疆哈密市第一中学2021-2022学年高二上学期期末考试数学(理)试题广东省深圳市第七高级中学2021-2022学年高二上学期期末数学试题黑龙江省大庆市大庆中学2021-2022学年高二下学期开学考试数学试题陕西省渭南市韩城市新蕾中学2020-2021学年高二上学期第二次月考检测文科数学试题
3 . 已知抛物线
:
,过焦点的直线
与
轴平行,且与抛物线交于
,
两点,若
.
(1)求抛物线
的方程;
(2)直线
与抛物线
相交于异于坐标原点的两点
、
,若以
为直径的圆过坐标原点,求证:直线
恒过定点并求出该定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dfc9d1109fe41145cc892b5702d9fb.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
您最近一年使用:0次
名校
解题方法
4 . 已知抛物线
:
过点
,直线
经过抛物线的焦点
与抛物线交于
,
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/9c897a1a-0ad5-49d3-8716-09c55b8ffbfa.png?resizew=160)
(1)若直线
的方程为
,求
的值;
(2)若直线
,
的斜率为
,
,且
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c1dfc3b8de8d7b6cfff140359b5f59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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://img.xkw.com/dksih/QBM/editorImg/2023/2/23/9c897a1a-0ad5-49d3-8716-09c55b8ffbfa.png?resizew=160)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026808536f6b6d265c778e23836fbf13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec7bcf5820dfe70290259c2d7ac1ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
名校
5 . 已知抛物线
的焦点为
,过点
的直线
与抛物线
相交于
两点,线段
的中点的横坐标为3,
.
(1)求抛物线
的标准方程;
(2)若直线
的倾斜角为钝角,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a21beb3c88e85fd5891d3a98fdd9ae.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/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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55ce485a782ae377ab4c1c3037edcfae.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-02-01更新
|
249次组卷
|
2卷引用:重庆市第八中学2019-2020学年上学期期末高二数学试题
名校
6 . 平面直角坐标系
中,抛物线
的焦点为F,过F的直线
交
于B,C两点.
(1)若
垂直于轴,且线段BC的长为1,求
的方程;
(2)若
的斜率为
,求
;
(3)设抛物线上异于
的点A满足
,若
的重心在
轴上,求
的重心的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c38bdb4c0a59b645f2965cdcceab429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8156f76e45f4f45964ad9b45b38da34b.png)
(3)设抛物线上异于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/505b6a2ffbe5eee08156c30c8e41dbd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
您最近一年使用:0次
2020-01-10更新
|
327次组卷
|
2卷引用:2018年上海市七宝中学高考模拟三模数学试题
名校
7 . 已知过抛物线
的焦点,斜率为
的直线交抛物线于
,
两点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf10573c5ea2b397b8721d1db7f5cc2f.png)
(1)求该抛物线的方程;
(2)
为坐标原点,若
,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.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/cf10573c5ea2b397b8721d1db7f5cc2f.png)
(1)求该抛物线的方程;
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294b1764653134976615a9f4f330c063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea16ceca816f7d3d50650af141baf42.png)
您最近一年使用:0次
8 . 已知抛物线
的焦点为
,点
在抛物线上,且点
的横坐标为4,
.
(1)求抛物线C的方程;
(2)过焦点
作两条互相垂直的直线
,直线
与
交于
两点,直线
与
交于
两点,则求
的最小值.
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff29e80ba6c16e1177e7873a396a7a6.png)
(1)求抛物线C的方程;
(2)过焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a51949f48ee8cf746851ba779b078e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45d4785a48c4e9641450e9ee2822df3.png)
您最近一年使用:0次
2019-11-14更新
|
718次组卷
|
2卷引用:宁夏银川市兴庆区长庆高级中学2019-2020学年高二上学期期中数学(理)试卷
2014·吉林长春·三模
名校
9 . 已知抛物线C:y2=2px(p>0)的焦点为F,若过点F且斜率为1的直线与抛物线相交于M,N两点,且|MN|=8.
(1)求抛物线C的方程;
(2)设直线l为抛物线C的切线,且l∥MN,P为l上一点,求
的最小值.
(1)求抛物线C的方程;
(2)设直线l为抛物线C的切线,且l∥MN,P为l上一点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f4ea7498731e5af223a75a5ab7f32c.png)
您最近一年使用:0次
2019-08-16更新
|
2202次组卷
|
9卷引用:2014届吉林省长春市高中毕业班第三次调研测试文科数学试卷
(已下线)2014届吉林省长春市高中毕业班第三次调研测试文科数学试卷福建省2016届高三毕业班总复习(圆锥曲线)单元过关形成性测试卷(文科)试题【全国百强校】四川省绵阳南山中学2018-2019学年高二12月月考数学文科试题智能测评与辅导[文]-抛物线(已下线)专题9.6 直线与圆锥曲线(精讲)-2021年高考数学(文)一轮复习学与练广东省佛山市石门中学2020-2021学年高二上学期七校联考数学试题四川省绵阳市南山中学2020-2021学年高二下学期开学考试数学(理)试题(已下线)专题23 圆锥曲线中的最值、范围问题 微点1 圆锥曲线中的最值问题北师大版(2019) 选修第一册 数学奇书 学业评价(二十) 抛物线的标准方程及性质的应用
名校
解题方法
10 . 已知抛物线
的焦点为
,若过点
且斜率为1的直线与抛物线交于
两点,且
.
(1)求抛物线
的方程;
(2)若平行于
的直线
与抛物线
相切于点
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9876c67ff955512e0402d157f11ebdf9.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/2c348601813d70ba64ffca73cf2256f3.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若平行于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53502463cc76201000e02df314e58769.png)
您最近一年使用:0次
2019-07-05更新
|
667次组卷
|
2卷引用:河北省承德市隆华存瑞中学2018-2019学年高二上学期6月月考数学(文)试题