在平面直角坐标系中,已知抛物线
与x轴交于点
和点B,与y轴交于点
.
(2)P是抛物线上一动点(不与点A,B,C重合),作
轴,垂足为D,连接
.
①如图,若点P在第三象限,且
,求点P的坐标;
②直线
交直线
于点E,当点E关于直线
的对称点
落在y轴上时,请直接写出四边形
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fae87d5b04b164e7f976e7e0093bf27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f0ec7f84f716a316ec92d133927666c.png)
(2)P是抛物线上一动点(不与点A,B,C重合),作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f00d0ff8dd38da17167cf9b789eec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
①如图,若点P在第三象限,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987dc0411d7c651c01b4e33ada81a6b8.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b1a5427d8ff23df0f3ec194756c84c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b8f867585218c21799b36537147e33c.png)
2023·内蒙古通辽·中考真题 查看更多[3]
2023年内蒙古通辽市中考数学真题(已下线)2023年新疆维吾尔族自治区中考数学真题变式题20-23题(已下线)突破06 函数与几何图形动态探究题(5类重点考向)-备战2024年中考数学真题题源解密(全国通用)
更新时间:2023-06-28 20:03:56
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相似题推荐
解答题-问答题
|
较难
(0.4)
名校
【推荐1】在平面直角坐标系中,抛物线
与
x轴交于
、
两点(点
在点
的左侧),交
轴于点
.点
是抛物线上位于直线
下方的一点.
![](https://img.xkw.com/dksih/QBM/2021/5/9/2717135896608768/2718705756864512/STEM/b65f280a-9492-436a-8f76-757507feb3c1.png?resizew=219)
![](https://img.xkw.com/dksih/QBM/2021/5/9/2717135896608768/2718705756864512/STEM/0c29041d74f440d4b5ba02e5e42baeed.png?resizew=288)
![](https://img.xkw.com/dksih/QBM/2021/5/9/2717135896608768/2718705756864512/STEM/4824c681-f43e-42dd-b312-3f5eeda05b49.png?resizew=269)
(1)如图1,连接
,
,当点
的横坐标为
时,求
;
(2)如图2,过点
作
交
于点
,求
长度的最大值及此时点
的坐标;
(3)如图3,将抛物线
向右平移
个单位,再向下平移
个单位,得到新抛物线
.新抛物线与原抛物线的交点为点
,
为新抛物线的对称轴上的一点,点
是坐标平面内一点,若以
,
,
,
为顶点的四边形是矩形,请求出所有符合条件的点
坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366c7af286efadd9a2e084b30bd3fc97.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/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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2021/5/9/2717135896608768/2718705756864512/STEM/b65f280a-9492-436a-8f76-757507feb3c1.png?resizew=219)
![](https://img.xkw.com/dksih/QBM/2021/5/9/2717135896608768/2718705756864512/STEM/0c29041d74f440d4b5ba02e5e42baeed.png?resizew=288)
![](https://img.xkw.com/dksih/QBM/2021/5/9/2717135896608768/2718705756864512/STEM/4824c681-f43e-42dd-b312-3f5eeda05b49.png?resizew=269)
(1)如图1,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c62562741d0ca302918ee079737b4e15.png)
(2)如图2,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb73f854e7561c943b460e6c84e26fb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)如图3,将抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366c7af286efadd9a2e084b30bd3fc97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa3fc182cc3750d24a9a47caa0370b8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
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【推荐2】如图,已知A、B是线段
上的两点,
,
,
.以A为中心顺时针旋转点M,以B为中心逆时针旋转点N,使从M、N两点重合成一点C,构成
,设
.
![](https://img.xkw.com/dksih/QBM/2020/12/23/2620265913106432/2620896239755264/STEM/9948e97aaea3446fab321c3b98e7ee45.png?resizew=211)
(1)求x的取值范围;
(2)若
为直角三角形,求x的值;
(3)探究:
的最大面积?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ee7af832af9460f4775fa5c8c3620f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca7f2c76e2d7aafeafbba1f7d740850e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2fee2e2af167e84126fe551316fbe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c7a3d679b4dae63575903387a76ce45.png)
![](https://img.xkw.com/dksih/QBM/2020/12/23/2620265913106432/2620896239755264/STEM/9948e97aaea3446fab321c3b98e7ee45.png?resizew=211)
(1)求x的取值范围;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)探究:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐3】如图,抛物线y=ax2+bx+c与x轴交于A,B两点(点A在点B左侧),与y轴交于点C,且当x=0和x=2时,y的值相等,直线y=3x-7与这条抛物线交于两点,其中一点横坐标为4,另一点是这条抛物线的顶点M.
(1)求顶点M的坐标.
(2)求这条抛物线对应的函数解析式.
(3)P为线段BM上一点(P不与点B,M重合),作PQ⊥x轴于点Q,连接PC,设OQ=t,四边形PQAC的面积为S,求S与t的函数解析式,并直接写出t的取值范围.
(4)在线段BM上是否存在点N,使△NMC为等腰三角形?若存在,求出点N的坐标,若不存在,说明理由.
(1)求顶点M的坐标.
(2)求这条抛物线对应的函数解析式.
(3)P为线段BM上一点(P不与点B,M重合),作PQ⊥x轴于点Q,连接PC,设OQ=t,四边形PQAC的面积为S,求S与t的函数解析式,并直接写出t的取值范围.
(4)在线段BM上是否存在点N,使△NMC为等腰三角形?若存在,求出点N的坐标,若不存在,说明理由.
![](https://img.xkw.com/dksih/QBM/2018/8/27/2019463073488896/2019723948064768/STEM/ac0b9b0bd5f54ad4b91ec70cba73f616.png?resizew=185)
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真题
名校
【推荐1】在平面直角坐标系
中,
的半径为1.对于
的弦
和
外一点C给出如下定义:
若直线
,
中一条经过点O,另一条是
的切线,则称点C是弦
的“关联点”.
(1)如图,点
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f79bc392c5587559b4e6fdd6c56a3197.png)
①在点
,
,
中,弦
的“关联点”是______.
②若点C是弦
的“关联点”,直接写出
的长;
(2)已知点
,
.对于线段
上一点S,存在
的弦
,使得点S是弦
的“关联点”,记
的长为t,当点S在线段
上运动时,直接写出t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/18/00aeb513-62df-49bc-97b6-71190f5e3c75.png?resizew=254)
(1)如图,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e2658e6e3eac87ea26a5e156c7fa449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f79bc392c5587559b4e6fdd6c56a3197.png)
①在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4363d6bff001cf79ab6c65723d181e55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d66a0a71da5a92af3094021df0df9eb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a651325ece5e100b4f90565ca14c979c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
②若点C是弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b93e3f4eb68d7e137c034d9d32094be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149ee9d2da588990c54ec5199ad221ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c76e9a82264c71d58a3e53647e0f3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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【推荐2】如图,在
中,
,以
为直径的
分别交
于点
,过点
作
的垂线交
的延长线于点
.
![](https://img.xkw.com/dksih/QBM/2020/12/7/2609019259191296/2609746346754048/STEM/d6a9ea55-6b79-42b1-b880-4a228c441634.png?resizew=272)
(1)求证:
;
(2)过点
作
于
,若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e675a92cad72c65aa4071b9d9e226090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2020/12/7/2609019259191296/2609746346754048/STEM/d6a9ea55-6b79-42b1-b880-4a228c441634.png?resizew=272)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918878b0eb1fd4fbb80f9764cdc0e352.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab1f21901e4735a178589a9c1978743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a736b292735105a96a290a1711e0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
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【推荐1】如图,在平面直角坐标系中,抛物线
经过点
,
,直线
与抛物线交于
两点,点
是
下方抛物线上的一点.过点
作
,垂足为
.
(2)当
取得最大值时,求点
的坐标和
的最大值;
(3)将抛物线向右平移3个单位得到新抛物线,
为原抛物线对称轴上一点;点
为新抛物线上一点.当(2)中
最大时,直接写出所有使得以点
为顶点的四边形是平行四边形的点
的坐标,并把求其中一个点
的坐标的过程写出来.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e59da5115d0dafea24822245f92c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c6abf1c9bc89e3fb025aa9a8e9e4b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc7d561b6e56aabf90e7c585c04f0e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa69fd8445d01c98634c2e885b47d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d90d6501f6865c69bcd6564b60cb764f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
(3)将抛物线向右平移3个单位得到新抛物线,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2cb9bed472f3a2a7ef1f7661bc2d4db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
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【推荐2】如图,在
中,
,
,
.点
从点
出发以每秒2个单位的速度沿
运动,到点
停止.当点
不与
的顶点重合时,过点
作其所在边的垂线,交
的另一边于点
.设点
的运动时间为
秒.
![](https://img.xkw.com/dksih/QBM/2022/1/5/2888096591683584/2890623120900096/STEM/2056ea17-2569-46b9-8aab-f1354334f745.png?resizew=231)
(1)边
的长为 .
(2)当点
在
的直角边上运动时,求点
到边
的距离.(用含
的代数式表示)
(3)当点
在
的直角边上时,若
,求
的值.
(4)当
的一个顶点到
的斜边和一条直角边的距离相等时,直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b79c8325025c06b001ef73a1b6830a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://img.xkw.com/dksih/QBM/2022/1/5/2888096591683584/2890623120900096/STEM/2056ea17-2569-46b9-8aab-f1354334f745.png?resizew=231)
(1)边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/136994ffd5ab54ea4afa4697b5011dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(4)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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(0.4)
名校
【推荐1】已知抛物线
向左平移1个单位长度,再向上平移4个单位长度得到抛物线
.
![](https://img.xkw.com/dksih/QBM/2022/2/13/2915408185319424/2924600936783872/STEM/b4115ccd-bd04-4ab0-9a60-3d89d502e2f8.png?resizew=415)
(1)直接写出抛物线
的解析式 ;
(2)如图1,已知抛物线
与
轴交于
,
两点,点
在点
的左侧,点
,
在抛物线
上,
交抛物线于点
.求点
的坐标;
(3)已知点
,
在抛物线
上,
轴,点
在点
的左侧,过点
的直线
与抛物线
只有一个公共点
与
轴不平行),直线
与抛物线交于另一点
.若线段
,设点
,
的横坐标分别为
,
,直接写出
和
的数量关系(用含
的式子表示
为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b3574d014cc3c13764c86ccae7b889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8874a2c6ebcf2c9d24584ac8fda3da5b.png)
![](https://img.xkw.com/dksih/QBM/2022/2/13/2915408185319424/2924600936783872/STEM/b4115ccd-bd04-4ab0-9a60-3d89d502e2f8.png?resizew=415)
(1)直接写出抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)如图1,已知抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b3aeb396e11037097e8c2d09c936aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e84c72c32a70597a1c8ebd76afec9aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4289bfbb51a42782f36a3f8b0b6f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(3)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee82d3a732652d1b6cbb29c1e7f41f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9fedd674d327e6a02a10604f46f709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870640a19798be5cbd7c89e882bf0563.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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713ac1eb0d8cce55d51e62ef4a2b1634.png)
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【推荐2】如图,一次函数y=﹣x﹣2的图象与二次函数y=ax2+bx﹣4的图象交于x轴上一点A,与y 轴交于点B,在x轴上有一动点C.已知二次函数y=ax2+bx﹣4的图象与y轴交于点D,对称轴为直线x=n(n<0),n是方程2x2﹣3x﹣2=0的一个根,连接AD.
(1)求二次函数的解析式.
(2)当S△ACB=3S△ADB 时,求点C的坐标.
(3)试判断坐标轴上是否存在这样的点C,使得以点A、B、C组成的三角形与△ADB 相似?若存在,试求出点C的坐标;若不存在,请说明理由.
(1)求二次函数的解析式.
(2)当S△ACB=3S△ADB 时,求点C的坐标.
(3)试判断坐标轴上是否存在这样的点C,使得以点A、B、C组成的三角形与△ADB 相似?若存在,试求出点C的坐标;若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/2018/12/30/2108039927791616/2110959476998144/STEM/29976729bffe43af988b2345716fa661.png?resizew=132)
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