名校
1 . 已知点F为抛物线C:
(
)的焦点,且F到准线l的距离为2.
(1)求抛物线C的标准方程;
(2)若点P在抛物线上,且在第一象限,其横坐标为4,过点F作直线
的垂线交准线l于点Q.证明:直线
与抛物线C只有一个交点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
(1)求抛物线C的标准方程;
(2)若点P在抛物线上,且在第一象限,其横坐标为4,过点F作直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
2021-03-03更新
|
498次组卷
|
4卷引用:专题21 抛物线综合-2020年高考数学母题题源全揭秘(浙江专版)
(已下线)专题21 抛物线综合-2020年高考数学母题题源全揭秘(浙江专版)江西省新余市第一中学2020-2021学年高二年级第六次考试数学(文)试题江西省贵溪市实验中学2020-2021学年高二3月第一次月考数学(理)试题(已下线)专题2.10 圆锥曲线-抛物线-2021年高考数学解答题挑战满分专项训练(新高考地区专用)
名校
解题方法
2 . 如图,已知抛物线
上一点
到抛物线焦点F的距离为5.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/9daab6ff-a7d9-43bc-a64b-5f03d23f2922.png?resizew=145)
(1)求抛物线的方程及实数a的值;
(2)过点M作抛物线的两条弦
,
,若
,
的斜率分别为
,
,且
,求证:直线
过定点,并求出这个定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12802debdc753058d1786ac13e07840b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/9daab6ff-a7d9-43bc-a64b-5f03d23f2922.png?resizew=145)
(1)求抛物线的方程及实数a的值;
(2)过点M作抛物线的两条弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.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/1d3b6ae05dabb308a2d8992ca18c16da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2020-12-16更新
|
287次组卷
|
2卷引用:浙江省温州中学2020-2021学年高二上学期期中数学试题
名校
3 . 已知抛物线
上横坐标为2的一点
到焦点的距离为3.
(1)求抛物线C的方程;
(2)设动直线
交
于
、
两点,
为坐标原点, 直线OA,OB的斜率分别为
,且
,证明:直线l经过定点,求出定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)求抛物线C的方程;
(2)设动直线
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985a294d39f2a106aa474462ec15dbfb.png)
您最近一年使用:0次
2020-11-21更新
|
983次组卷
|
6卷引用:浙江省金华市东阳中学2020-2021学年高二上学期期中数学试题
浙江省金华市东阳中学2020-2021学年高二上学期期中数学试题宁夏回族自治区石嘴山市第一中学2020-2021学年高二12月月考理科数学试题宁夏青铜峡市高级中学2021-2022学年高二上学期期末考试数学(理)试题山东省莱州市第一中学2021-2022学年高二下学期开学考试数学试题(已下线)专题3-4 圆锥曲线定点问题(已下线)第9课时 课中 直线与抛物线的位置关系
4 . 已知抛物线
焦点为
.过点
的弦长最小值为
.过点
作抛物线的两条切线
、
,切点分别为
、
,另一直线
过点
与抛物线相交于两点
、
,与直线
相交于点
.
![](https://img.xkw.com/dksih/QBM/2019/12/25/2368402750291968/2425269427167232/STEM/0e64d377964641f4889046bbe9ad528c.png?resizew=328)
(1)求抛物线
的方程;
(2)问
是否为定值?若是,求出定值;若不是,求其最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b34cf1bd21aaec882a6a5bee21adcb.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/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5de78b493bc2cc9696c584325c22ee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.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/0f85fca60a11e1af2bf50138d0e3fe62.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://img.xkw.com/dksih/QBM/2019/12/25/2368402750291968/2425269427167232/STEM/0e64d377964641f4889046bbe9ad528c.png?resizew=328)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)问
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d59aa8b7e89c08467efd0b8779f462.png)
您最近一年使用:0次
名校
5 . 已知点
为抛物线
:
上一点,且点
到
轴的距离比它到焦点的距离小3,则
( )
![](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/b9de36529148d5e73cc4ff68b8f5e3fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
A.3 | B.6 | C.8 | D.12 |
您最近一年使用:0次
2020-10-28更新
|
1510次组卷
|
9卷引用:专题3.4《圆锥曲线的方程》单元测试卷(B卷提升篇)-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A版,浙江专用)
(已下线)专题3.4《圆锥曲线的方程》单元测试卷(B卷提升篇)-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A版,浙江专用)河南省洛阳市汝阳县2020-2021学年高三上学期联考数学(理)试题(已下线)专题13 抛物线及其性质——2020年高考数学母题题源解密(山东、海南专版)(已下线)【新教材精创】3.3.2+抛物线的简单几何性质(1)-B提高练-人教A版高中数学选择性必修第一册(已下线)【新教材精创】2.7.2+抛物线的几何性质(1)-B提高练-人教B版高中数学选择性必修第一册江西省吉安县立中学2020-2021学年高二12月月考数学(文A)试题陕西省渭南市白水县2020-2021学年高二上学期期末理科数学试题四川省泸县第四中学2022-2023学年高二下学期开学考试数学(理)试题四川省泸县第四中学2022-2023学年高二下学期开学考试数学(文)试题
名校
解题方法
6 . 已知椭圆
的左右两个焦点分别为
,
,以坐标原点为圆心,过
,
的圆的内接正三角形的面积为
,以
为焦点的抛物线
的准线与椭圆C的一个公共点为P,且
.
(1)求椭圆C和抛物线M的方程;
(2)过
作相互垂直的两条直线,其中一条交椭圆C于A,B两点,另一条交抛物线M于G,H两点,求四边形
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef6b94e42869013745050aba059b58dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbd3e8cf8325999cde03adf845d3dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fabe5a81b48bddc97a2572af16a62953.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/326b659298a4cf4e3bdda34ba733296f.png)
(1)求椭圆C和抛物线M的方程;
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad7ce2fe473974edd2566deb05aede8.png)
您最近一年使用:0次
2020-10-17更新
|
804次组卷
|
5卷引用:浙江省十校联盟2020-2021学年高三上学期10月联考数学试题
浙江省十校联盟2020-2021学年高三上学期10月联考数学试题(已下线)【南昌新东方】江西省南昌十九中2020-2021学年高三上学期11月第二次月考数学(理)试题25内蒙古赤峰二中2021届高三上学期第二次月考数学(文科)试题(已下线)思想03 运用函数与方程的思想方法解题(精讲精练)-2湖南省常德市汉寿县第一中学2022-2023学年高二下学期开学考试数学试题
名校
解题方法
7 . 已知曲线M上任意一点P到
的距离比到x轴的距离大2,圆
,直线
与曲线M交于A,D两点,与圆N交于B,C两点,其中点A,B在第一象限,则
的最小值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df80e89c0e6b9c87ec0af6e9209c23d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4b587baa863a7feff0a103f912cedb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a8d6991873e79b298984a95b8954b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ed7bdf2cc82271e3c7a04c96227d3c.png)
您最近一年使用:0次
2020-05-28更新
|
501次组卷
|
4卷引用:2020年浙江省新高考考前原创冲刺卷(四)
2020年浙江省新高考考前原创冲刺卷(四)湖北省孝感高级中学2020-2021学年高二下学期2月调研考试数学试题(已下线)专题43抛物线-2022年(新高考)数学高频考点+重点题型(已下线)11.3 抛物线
名校
解题方法
8 . 已知抛物线
:
和直线
:
,
是抛物线
上的点,且点
到
轴的距离与到直线
的距离之和的最小值![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21e5b7aee7c052be7054c2e20f0e403.png)
(1)求抛物线
的方程;
(2)设
,过点
作抛物线
的两条切线,切点分别记为
,
,抛物线
在点
处的切线与
,
分别交于
,
两点,求
外接圆面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc8e0a4e596e6b0a2f81e1f03fa0430.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21e5b7aee7c052be7054c2e20f0e403.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f57349d80ef6a2d6bcee498f595597.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf25e032b5599ac49383de06e776365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf702adb116c1e46569eb7050d029f49.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/a0023c9e8e0fec24d3aa77d09b2e4e62.png)
您最近一年使用:0次
名校
解题方法
9 . 已知抛物线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
的焦点为
,抛物线上的点
到
轴的距离等于![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6edae29fa23f93b6fb76db8de1dec122.png)
(1)求抛物线方程;
(2)设点
,过点
作直线
与抛物线交于
,
两点,且
,若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75de1947893e5c7a4d98d4458398fd6e.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6edae29fa23f93b6fb76db8de1dec122.png)
(1)求抛物线方程;
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/033ebbe4c38aa7936fac5b96309a1092.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e164307934b826036f1a80079f7dd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6249893a2e4a29822048cb592a00203c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8399f40225d7b0bc5a81a155d50cddff.png)
您最近一年使用:0次
2020-08-02更新
|
231次组卷
|
2卷引用:浙江省宁波市效实中学2020届高三下学期6月高考模拟数学试题
解题方法
10 . 已知抛物线C的顶点在坐标原点,焦点F在x轴正半轴上,抛物线C上一点P(4,m)到焦点F的距离为5.
![](https://img.xkw.com/dksih/QBM/2020/7/14/2505773335322624/2507243351318528/STEM/4b9f63fa42454e579effab2a37b559e9.png?resizew=226)
(1)求抛物线C的标准方程;
(2)已知M是抛物线C上任意一点,若在射线
上存在两点G, H,使得线段MG,MH的中点恰好落在抛物线C上,求当△MGH面积取得最大值时点M的坐标.
![](https://img.xkw.com/dksih/QBM/2020/7/14/2505773335322624/2507243351318528/STEM/4b9f63fa42454e579effab2a37b559e9.png?resizew=226)
(1)求抛物线C的标准方程;
(2)已知M是抛物线C上任意一点,若在射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d6cfa847b98602bb4da69cf71e464fc.png)
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