1 . 如图,已知抛物线
,直线
交抛物线C于A,B两点,
的中点为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/266cbb7e-f3ba-49e9-8c62-928859292790.png?resizew=102)
(1)求抛物线C的标准方程;
(2)记抛物线C上一点
,直线
的斜率为
,直线
的斜率为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/139189550dc26d6130088799c1e65581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407417c2fd059a0cbb54f27edb8876bd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/266cbb7e-f3ba-49e9-8c62-928859292790.png?resizew=102)
(1)求抛物线C的标准方程;
(2)记抛物线C上一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dfdade66272ca9272dfe0a5a6566d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
您最近一年使用:0次
解题方法
2 .
为抛物线
上一点,过
作两条关于
对称的直线分别交
于
两点.
(1)求
的值及
的准线方程;
(2)判断直线
的斜率是否为定值?若是,求出定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2007972af3341f27fbc32ce62dfce5e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d86c77b50c097baa3e37693b3295f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(2)判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2023-12-22更新
|
1418次组卷
|
7卷引用:专题13抛物线(2个知识点2个拓展2个突破7种题型4个易错点)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(人教A版2019选修第一册)
(已下线)专题13抛物线(2个知识点2个拓展2个突破7种题型4个易错点)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(人教A版2019选修第一册)(已下线)模块三 专题6 大题分类练(圆锥曲线)拔高能力练 期末终极研习室(高二人教A版)(已下线)专题03 圆锥曲线题型全归纳(九大考点)-【寒假自学课】2024年高二数学寒假提升学与练(人教A版2019)甘肃省兰州市第五十八中学2023-2024学年高二上学期期末数学试题四川省凉山彝族自治州2024届高三第一次诊断性检测数学(文科)试题江西省上饶市清源学校2024届高三上学期12月月考数学试题(已下线)专题05 抛物线8种常见考法归类(3)
3 . 经过抛物线
焦点的直线
交该抛物线于
两点.
(1)若直线
的斜率是
,求
的值;
(2)若
是坐标原点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b0ba14e41e306e5633ad4bf1cdedd8.png)
您最近一年使用:0次
2023-12-15更新
|
1122次组卷
|
3卷引用:专题13抛物线(2个知识点2个拓展2个突破7种题型4个易错点)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(人教A版2019选修第一册)
(已下线)专题13抛物线(2个知识点2个拓展2个突破7种题型4个易错点)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(人教A版2019选修第一册)辽宁省辽东南协作校2023-2024学年高二上学期12月月考数学(A卷)试题(已下线)第三章 圆锥曲线与方程(单元重点综合测试)-2023-2024学年高二数学单元速记·巧练(苏教版2019选择性必修第一册)
4 . 若抛物线C:
(
)上的一点
到它的焦点的距离为
.
(1)求C的标准方程;
(2)若过点
的直线l与抛物线C相交于A,B点,证明
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b35f0b940c8422ef47edc3b7ce55e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/931d1225958148db43189672d7de22a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0874f019492261eb175bdcc08c189d.png)
(1)求C的标准方程;
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be33e6b2e806a89c356fd70834f86b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a27caed03a663d3b47eaa66ea25a72.png)
您最近一年使用:0次
2023-12-08更新
|
487次组卷
|
3卷引用:专题13抛物线(2个知识点2个拓展2个突破7种题型4个易错点)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(人教A版2019选修第一册)
(已下线)专题13抛物线(2个知识点2个拓展2个突破7种题型4个易错点)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(人教A版2019选修第一册)云南省昆明市云南师范大学附属中学2023-2024学年高二上学期教学测评月考(三)数学试题(已下线)第3章:圆锥曲线与方程章末重点题型复习-【题型分类归纳】2023-2024学年高二数学同步讲与练(苏教版2019选择性必修第一册)
名校
解题方法
5 . 抛物线:
过点
,直线
不经过点
,直线
与抛物线
交于
和
两点,使得
.
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2023-12-06更新
|
967次组卷
|
4卷引用:专题03 圆锥曲线的方程(2)
6 . 已知
为抛物线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fdc384aa20e27b9289497e741e35554.png)
的焦点,
为坐标原点,
为
的准线
上的一点,直线
的斜率为
,
的面积为4.
(1)求
的方程;
(2)抛物线
在
轴上方一点
的横坐标为
,过点
作两条倾斜角互补的直线,与曲线
的另一个交点分别为
、
,求证:直线
的斜率为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fdc384aa20e27b9289497e741e35554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.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/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2ce6d23fb52cc513580a8f0e6760c2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
名校
解题方法
7 . 已知F为抛物线C的焦点,过F的直线
交C于A,B两点,点D在C上,使得
的重心G在x轴的正半轴上,直线
,
分别交
轴于Q,P两点.O为坐标原点,当
时,
.
(1)求C的标准方程.
(2)记P,G,Q的横坐标分别为
,
,
,判断
是否为定值.若是,求出该定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ebf992b3322f2d8b2ee986f67a6af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
(1)求C的标准方程.
(2)记P,G,Q的横坐标分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2297930d54a0452220d963bfef6a616a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c01080a37368247d111980a599ec40f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c15a90db6dfd1aab79a3728748cc6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e82c2aafbfeffc2d952aead8d16382.png)
您最近一年使用:0次
2023-11-10更新
|
737次组卷
|
5卷引用:通关练17 抛物线8考点精练(3)
(已下线)通关练17 抛物线8考点精练(3)(已下线)考点19 解析几何中的探索性问题 2024届高考数学考点总动员河南省信阳市商城县上石桥高级中学2023-2024学年高二上学期12月月考数学试题四川省成都市玉林中学2023-2024学年高二上学期期末模拟数学试题(三)江西省赣州市十八县二十三校2023-2024学年高二上学期期中联考数学试题
名校
解题方法
8 . 已知抛物线
,直线
交抛物线
于
两点,
中点为
.
(1)求抛物线
的标准方程;
(2)记抛物线
上一点
,直线
斜率为
,直线
斜率为
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/139189550dc26d6130088799c1e65581.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/407417c2fd059a0cbb54f27edb8876bd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/1/0155d671-4625-4ffe-9326-2f428080cf0c.png?resizew=121)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)记抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729c842973bb9c69a7162ced9c3968e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
您最近一年使用:0次
2023-11-09更新
|
1155次组卷
|
5卷引用:3.3.2 抛物线的简单的几何性质(重难点突破)-【冲刺满分】2023-2024学年高二数学重难点突破+分层训练同步精讲练(人教A版2019选择性必修第一册)
(已下线)3.3.2 抛物线的简单的几何性质(重难点突破)-【冲刺满分】2023-2024学年高二数学重难点突破+分层训练同步精讲练(人教A版2019选择性必修第一册)(已下线)3.3.2 抛物线的几何性质(5大题型)-【题型分类归纳】2023-2024学年高二数学同步讲与练(苏教版2019选择性必修第一册)黑龙江省哈尔滨市第九中学校2023-2024学年高二上学期期末考试数学试卷江苏省淮安市2023-2024学年高二上学期11月期中数学试题江苏省淮安中学2023-2024学年高二上学期期中数学试题
9 . 已知抛物线
的顶点为
,过点
的直线交
于
两点.
(1)判断
是否为定值,并说明理由;
(2)设直线
分别与直线
交于点
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b0ba14e41e306e5633ad4bf1cdedd8.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a5e484dfef494d27bc35ae7b8cf75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06553b7e77205d053c1981e9c050d579.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ea907b820c999daced6c12a4f876fc.png)
您最近一年使用:0次
2023-10-29更新
|
686次组卷
|
4卷引用:通关练17 抛物线8考点精练(3)
(已下线)通关练17 抛物线8考点精练(3)(已下线)专题26 直线与圆锥曲线的位置关系5种常见考法归类 - 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教B版2019选择性必修第一册)重庆市第八中学校2024届高三上学期10月期中数学试题重庆市第八中学校2024届高三上学期适应性月考(二)数学试题
名校
解题方法
10 . 已知抛物线C:
,圆M:
,圆M上的点到抛物线上的点距离最小值为
.
(1)求圆M的方程;
(2)设P为
上一点,P的纵坐标不等于
.过点P作圆M的两条切线,分别交抛物线C于两个不同的点
,
和点
,
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31b247e7759c642f7b4fddda21194787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d7a2f955fcee83b279c97b4c17ceadb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(1)求圆M的方程;
(2)设P为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/482114e7d648375868ef996c201ea1db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c54199e88b6f92d592028a9a607ad23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff82ebdfad5e7de1c7487b0b817a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e311ee0b5085e7e5a45c606daa5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/042bbb2daf251833120b48d70b5bfc0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de0f4d837cd23ae28ee8a83a4dbf6d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d27084b928447e9693838cc4722c41c.png)
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