名校
解题方法
1 . 已知抛物线
的顶点在原点,对称轴为坐标轴,且过
,
,
,
四点中的两点.
(1)求抛物线
的方程;
(2)若直线
与抛物线
交于
两点,与抛物线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea66948882a4f947df1c57cedbd53db9.png)
交于
两点,
在第一象限,
在第四象限,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da61a8fc8f424929e9bf36622f1ca74f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d483dd3a65702ed0cd7df766300d03b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4065ed9c98391f4cfe89319b6e65b44f.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea66948882a4f947df1c57cedbd53db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a6e2e2fd460de8f49b81554b1ae36e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7833fd11cfe6ef6e449ed25fdd0f61df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/941178d4d92eb2c81ae6ffaeb651d9b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cff8d039dd1991c12d2de58d1dc2937a.png)
您最近一年使用:0次
2023-11-10更新
|
703次组卷
|
4卷引用:辽宁省大连市金州高级中学2023-2024学年高三上学期期中考试数学试题
名校
解题方法
2 . 如图抛物线
的顶点为A,焦点为F,准线为
,焦准距为4;抛物线
的顶点为B,焦点也为F,准线为
,焦准距为6.
和
交于P、Q两点,分别过P、Q作直线与两准线垂直,垂足分别为M、N、S、T,过F的直线与封闭曲线APBQ交于C、D两点,则下列说法正确的是______
①
;②四边形MNST的面积为
;③
;④
的取值范围为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/2/ad334661-04a5-49af-9790-f3bfb4740d0a.png?resizew=145)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e27ca8752789a82ffcdb3b1c18cfd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6f9a3350b7c7d6725c97ae7174bf16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b0173e60bc2e4f85c665e8e89f9ca74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316699c45f1c088945d0cd3bb46eecfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2797b54551d35ecbef7306ae822fc52.png)
您最近一年使用:0次
2023-09-01更新
|
509次组卷
|
6卷引用:辽宁省沈阳市浑南区东北育才学校试验部2023-2024学年高二上学期12月月考数学试题
辽宁省沈阳市浑南区东北育才学校试验部2023-2024学年高二上学期12月月考数学试题四川省成都市第七中学2024届高三上学期入学考试文科数学试题重庆市四川外语学院重庆第二外国语学校2024届高三上学期九月测试数学试题(已下线)高二上学期期中考试填空题压轴题50题专练-2023-2024学年高二数学举一反三系列(人教A版2019选择性必修第一册)重庆市乌江新高考协作体2023-2024学年高二上学期期末学业质量联合调研抽测数学试题(已下线)专题3.3 抛物线(6个考点十大题型)(2)
3 . 已知抛物线
的焦点为
,定点
和动点
,
都在抛物线
上,且
(其中
为坐标原点)的面积为3,则下列说法正确的是( )
![](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/8c982b19818ef985f0121e5dbd82fafd.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d953266f08eb217f1b174c1729e0ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.抛物线的标准方程为![]() |
B.设点![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若弦![]() ![]() ![]() |
您最近一年使用:0次
2023-08-25更新
|
828次组卷
|
3卷引用:辽宁省沈阳市浑南区东北育才学校试验部2023-2024学年高二上学期12月月考数学试题
解题方法
4 . 已知抛物线C:
,过点
的直线l交C于P,Q两点,当PQ与x轴平行时,
的面积为16,其中O为坐标原点.
(1)求C的方程;
(2)在y轴上是否存在定点M,使得直线MP,MQ关于y轴对称?若存在,求出点M的坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1a65d88f9823d49da8f3b96ea9ec6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
(1)求C的方程;
(2)在y轴上是否存在定点M,使得直线MP,MQ关于y轴对称?若存在,求出点M的坐标;若不存在,说明理由.
您最近一年使用:0次
5 . 已知抛物线
的焦点为F,
,点
是在第一象限内
上的一个动点,当DP与
轴垂直时,
,过点
作与
相切的直线
交
轴于点
,过点
作直线
的垂线交抛物线
于A,B两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/3/c6277961-e5d6-4df3-9800-7b451fa56dfb.png?resizew=150)
(1)求C的方程;
(2)如图,连接PD并延长,交抛物线C于点Q.
①设直线AB,OQ(其中O为坐标原点)的斜率分别为
,
,证明:
为定值;
②求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ee8669bc280bff4b20644cb82faf23.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46906f6684fdac35dc6f3ffebd495ebf.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/d053b14c8588eee2acbbe44fc37a6886.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/3/c6277961-e5d6-4df3-9800-7b451fa56dfb.png?resizew=150)
(1)求C的方程;
(2)如图,连接PD并延长,交抛物线C于点Q.
①设直线AB,OQ(其中O为坐标原点)的斜率分别为
![](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/67351fe10fcfc3f9072eec4c60bfaaa5.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2159546c9b881101210737a2b0ff4a.png)
您最近一年使用:0次
2023-05-02更新
|
1058次组卷
|
3卷引用:辽宁省沈阳市东北育才学校2023届高三数学考前最后一模试题
名校
解题方法
6 . 已知抛物线
:
的准线为
,过点
的直线交
于
,
两点,
的中点为
,分别过点
,
,
作
的垂线,垂足依次为
,
,
,则当
取最小值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db29aae448a615455452f68ee439380a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
您最近一年使用:0次
2023-05-01更新
|
895次组卷
|
2卷引用:辽宁省部分学校2024届高三上学期期末数学试题
解题方法
7 . 已知抛物线的焦点为F,
为其准线l与x轴的交点,过点E作直线与抛物线C在第一象限交于点A,B,且
.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd90e8add420e5373b897d49e19cdac5.png)
(2)设圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2520bcd0853812df6a9c0a3ecab405c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
您最近一年使用:0次
2023-04-24更新
|
1223次组卷
|
3卷引用:辽宁省“创新发展教研联盟”2024届高三第一次联考数学试题
8 . 若抛物线C:
,且A、B两点在抛物线上,F为焦点,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
A.若A、B、F共线,则![]() |
B.若![]() ![]() |
C.经过点![]() |
D.若![]() |
您最近一年使用:0次
9 . 已知抛物线
的焦点为F,直线
与抛物线交于A,B两点,O为坐标原点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
A.若直线OA,OB的斜率之积为![]() ![]() |
B.若直线OA,OB的斜率之积为![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2023-01-04更新
|
791次组卷
|
5卷引用:辽宁省辽阳市2022-2023学年高三上学期期末数学试题
10 . 已知F为抛物线
的焦点,点A,B在该抛物线上且位于x轴的两侧,
(其中O为坐标原点),则
与
面积之和的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/725958ac97752a7b37a679ce16bcfe91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7959e0af6500a4756c8a50ad8638be61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33fff07a5663bcc25319bfa6876706f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/618a5b77f4a4b83d8c144e7a180e12f3.png)
A.![]() | B.3 | C.![]() | D.![]() |
您最近一年使用:0次
2022-10-17更新
|
1937次组卷
|
8卷引用:辽宁省铁岭市昌图县第一高级中学2022-2023学年高二上学期10月月考数学试题