如图,矩形OABC在平面直角坐标系xOy中,点A在x轴的正半轴上,点C在y轴的正半轴上,OA=4,OC=3,若抛物线的顶点在BC边上,且抛物线经过O,A两点,直线AC交抛物线于点D.
![](https://img.xkw.com/dksih/QBM/2013/9/28/1573688925716480/1573688931966976/STEM/89e8a33c74e647bf9b68002701e98dd9.png?resizew=234)
(1)求抛物线的解析式;
(2)求点D的坐标;
(3)若点M在抛物线上,点N在x轴上,是否存在以A,D,M,N为顶点的四边形是平行四边形?若存在,求出点N的坐标;若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/2013/9/28/1573688925716480/1573688931966976/STEM/89e8a33c74e647bf9b68002701e98dd9.png?resizew=234)
(1)求抛物线的解析式;
(2)求点D的坐标;
(3)若点M在抛物线上,点N在x轴上,是否存在以A,D,M,N为顶点的四边形是平行四边形?若存在,求出点N的坐标;若不存在,请说明理由.
2013·云南昆明·中考真题 查看更多[19]
2013年初中毕业升学考试(云南昆明卷)数学2014届山东省济南外国语学校九年级第一次学业水平模拟考试数学试卷2015届山东省枣庄市第三十九中学第一次学业水平模拟考试数学试卷2016届四川省德阳市旌阳区九年级中考适应性训练数学试卷2016届山东省临沂市费县中考二模数学试卷福建省莆田市第二十五中学2016-2017学年上学期九年级期中质量检测数学试卷天津市宝坻区口东镇2018届九年级12月月考数学试题【全国市级联考】辽宁省本溪市2018届九年级中考数学二模试题广东省广州七中2019届九年级(上)月考数学试题(10月份)广东省汕头市六校2018届九年级上学期期中联考数学试题2019年云南省弥勒市九年级数学一模试题(已下线)【万唯原创】2017年陕西-逆袭卷-解答题特训10(已下线)【万唯原创】2015年陕西省-题型-第一部分题型8专题1+2(已下线)【万唯原创】2014年陕西-题型专项-解答题专项训练16泸州市古蔺县实验学校2020-2021学年九年级上学期期中数学试题广东省韶关市南雄市2021-2022学年九年级上学期期中数学试题2017-2018学年湖北省孝感市应城市九年级(上)期中数学试卷鲁教版(五四制)数学九年级上册第三章 二次函数单元测试广东省惠州市惠东县2022-2023学年九年级上学期核心素养评测数学(初评)试题
更新时间:2019-01-30 18:14:09
|
相似题推荐
解答题-问答题
|
较难
(0.4)
名校
【推荐1】抛物线
过
,
,
三点.
(2)如图①,抛物线上一点
在线段
的上方,
交
于点
,
,求点
的坐标;
(3)如图②,
为抛物线顶点,过
作直线
,点
在
轴上运动,是否存在这样的点
、
,使得以
、
、
为顶点的三角形与
相似,若存在,请直接写出点
的坐标.若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7fe08503434c717cbbca06bb0838c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/470eea7138ab65b098f69e6598565ff6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2484c6cd815ef6f45d08fb3156219401.png)
(2)如图①,抛物线上一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a20e5d585fbf903ee5affa6d083ab95f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c7c7ca20cb2b9e0d9d97ba2af5d242.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)如图②,
![](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/d5f56d4a08e50b95c1033c1ea3380c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afac6934256a23613443c393446881a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】已知抛物线
经过点
和
,与x轴交于另一点B,顶点为D.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/8/75c20942-2677-4882-a591-fc29c8b495ea.png?resizew=338)
(1)求抛物线的解析式,并写出D点的坐标;
(2)如图,点E,F分别在线段AB,BD上(E点不与A,B重合),且
,设
,
,求n与m的函数关系式,并求出n的最大值;
(3)在(2)问的条件下,
能否为等腰三角形?若能,求出BE的长;若不能,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62254c67f48185670f820e9e725e937a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e679e42ed99c2577108c98eeb59a4f86.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/8/75c20942-2677-4882-a591-fc29c8b495ea.png?resizew=338)
(1)求抛物线的解析式,并写出D点的坐标;
(2)如图,点E,F分别在线段AB,BD上(E点不与A,B重合),且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e7c51afb414bf3f8cdeb8d687ca5f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffcb0816ee2da7ddd071156a900f9eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e374298a003f568886dc459f02a41a5.png)
(3)在(2)问的条件下,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐1】如图,直线y =-x+4与x轴,y轴分别交于点B,C,点A在x轴负半轴上,且OA=
OB,抛物线y =ax2+bx+4经过A,B,C三点.
![](https://img.xkw.com/dksih/QBM/2019/6/13/2224737258799104/2225342127497216/STEM/687e7b6f-044d-4237-afa0-25d78ef59031.png?resizew=158)
(1)求抛物线的解析式;
(2)点P是第一象限内抛物线上的动点,设点P的横坐标为m,过点P作PD⊥BC,垂足为D,用含m的代数式表示线段PD的长,并求出线段PD的最大值;
(3)设点E为抛物线对称轴与直线BC的交点,若A,B,E三点到同一直线的距离分别是d1,d2,d3,问是否存在直线l,使得d1= d2=
d3? 若存在,请直接写出d3的值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/2019/6/13/2224737258799104/2225342127497216/STEM/687e7b6f-044d-4237-afa0-25d78ef59031.png?resizew=158)
(1)求抛物线的解析式;
(2)点P是第一象限内抛物线上的动点,设点P的横坐标为m,过点P作PD⊥BC,垂足为D,用含m的代数式表示线段PD的长,并求出线段PD的最大值;
(3)设点E为抛物线对称轴与直线BC的交点,若A,B,E三点到同一直线的距离分别是d1,d2,d3,问是否存在直线l,使得d1= d2=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐2】如图,在平面直角坐标系中,已知抛物线
与
轴交于点
,点
,与
轴交于点
,其中
,
,
.
(1)求该抛物线的函数表达式:
(2)若点
是
轴上的点,且以
,
,
为顶点的三角形与
相似,求点
的坐标.
(3)点
是抛物线
的对称轴上的一点,点
是坐标平面内一点,若以
,
,
,
为顶点的四边形是菱形,请直接写出所有符合条件的点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a525534689bd2701205d4ab17574c39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f0ec7f84f716a316ec92d133927666c.png)
(1)求该抛物线的函数表达式:
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/5/953ade4e-71d2-4b6e-a866-8439a5f4a8a6.png?resizew=348)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐1】如图,在平面直角坐标系
中,直线
分别与
轴、
轴交于
点,直线
与
轴相交于点
,点
在第四象限,
.
的解析式;
(2)当
时,求点
的坐标;
(3)在(2)的条件下,已知点
在
轴上,点
在直线
上,如果以点
为顶点的四边形是平行四边形,请直接写出点
和点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2beb91f10d2d8f2aa0dcc3f5cd1598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c48c439ef919695d2660d0a63e6eb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/205e468a82a5cb7b2a31456c5fccf85e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a22940cd2a129350c952ad7dc6db924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd4388a9c73e01c54985ddd734a9dd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)在(2)的条件下,已知点
![](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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d7665cd4eb96b58012a85ff444c29d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
解答题-计算题
|
较难
(0.4)
【推荐2】如图,在平面直角坐标系
中,直线
:
与x轴交于点A,与y轴交于点D,直线:
向下平移4个单位长度得到直线
,直线
与x轴交于点B,与
相交于点C.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/a75ec547-6359-4826-82bb-8f3e59a6f2c6.png?resizew=365)
(1)直线
的解析式为________________;
(2)求点C的坐标;
(3)若点M为x轴上一动点,当
的值最小时,求点M的坐标;
(4)在坐标平面内是否存在一点N,使以A、B、C、N为顶点的四边形是平行四边形?若存在,直接写出点N的坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23afc43a8c5b8cfe6bf2a1caed920c01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/a75ec547-6359-4826-82bb-8f3e59a6f2c6.png?resizew=365)
(1)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(2)求点C的坐标;
(3)若点M为x轴上一动点,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e586fa2dc5aba294a58f9aa53c285a65.png)
(4)在坐标平面内是否存在一点N,使以A、B、C、N为顶点的四边形是平行四边形?若存在,直接写出点N的坐标;若不存在,说明理由.
您最近一年使用:0次