综合与探究
如图,抛物线
与
轴交于
,
两点(点
在点
的左侧),与
轴交于点
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/ed0ebebf-caf5-4ee2-b10b-8fd3e4013ebc.png?resizew=513)
(1)求
,
,
三点的坐标并直接写出直线
的函数表达式;
(2)点
是第四象限内抛物线上一点,过点
作
轴,交抛物线于点
,当
平分
时,求点
坐标.
(3)若点
是抛物线对称轴上的一点,点
为平面内一点,当以点
,
,
,
为顶点的四边形为矩形时,请直接写出点
的坐标.
如图,抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7adf7d8633d28a374782ed1b67dcfadc.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/ed0ebebf-caf5-4ee2-b10b-8fd3e4013ebc.png?resizew=513)
(1)求
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99e9438b46cb36b219fd69d0667bf4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727ad3e630a224303d6d3b8ad5c114ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)若点
![](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/c5db41a1f31d6baee7c69990811edb9f.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/dad2a36927223bd70f426ba06aea4b45.png)
2024·山西晋城·二模 查看更多[1]
更新时间:2024-04-09 23:52:21
|
相似题推荐
解答题-问答题
|
困难
(0.15)
【推荐1】在平面直角坐标系中,点A的坐标为
,点B在直线l:
上,过点B作
的垂线,过原点O作直线l的垂线,两垂线相交于点C.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/23/1c5364db-5918-4224-8339-a76b7ded2082.png?resizew=297)
(1)如图,点B,C分别在第三、二象限内,
与
相交于点D.
①若
,求证:
.
②若
,求四边形
的面积.
(2)是否存在点B,使得以A,B,C为顶点的三角形与
相似?若存在,求
的长;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e47e3ecdff18bdbe66c366f19aeac1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d585d2d6643471640905d234d9538c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/23/1c5364db-5918-4224-8339-a76b7ded2082.png?resizew=297)
(1)如图,点B,C分别在第三、二象限内,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07e37b122a7273e1251ea3860e74c896.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99aed5a88a751a38fd51f22eac66a6ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50eb69a37738c6fc781793bb2ed40625.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c11630c98df712a47b68e9164cc8670d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6e5a5f564ce575adff22501f08843f.png)
(2)是否存在点B,使得以A,B,C为顶点的三角形与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff36ac07c45c8d03cf3b7d8739c517ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62e8aadaadebf1454fde21a390ebdea.png)
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解答题-作图题
|
困难
(0.15)
【推荐2】如图,正方形
中,点
在边
上,连接
,使
,交
于点
,连接
.
(1)依题意补全图形;
(2)判断
的形状,并证明;
(3)用等式表示线段
三者之间的数量关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3620030e8808da46df97330103827913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ad355f1897cdc39265c4420ed2e1ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/20/8d82161d-2f2c-4efd-8154-5276f8658d03.png?resizew=94)
(1)依题意补全图形;
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0702bd0b088224b2aedcc925f313d93f.png)
(3)用等式表示线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e91bb7155cf89ecbc4233773967883b.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
【推荐1】如图,在平面直角坐标系
中,点
,
为抛物线
上的动点,且
轴交
轴于点
.
(1)过点
作
轴于点
.
若
,直接写出点
,
的坐标;
如图
,连接
交抛物线于点
,在点
,
运动的过程中,求
的值;
(2)如图
,若点
,点
和点
关于点
对称,连接
,
,点
为
下方的抛物线上一动点(点
不与点
,
,
重合),过点
作与抛物线有唯一公共点的直线交
,
分别于点
,
,当点
运动时,试说明
为定值,并求出其值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.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/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc195a9f7ac138e5a1ad87d5fa201c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/8/73fcffc8-a6e6-4565-839b-cbeb88f460dc.png?resizew=383)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d3a0273d1f3046dfad2086d0df56c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.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/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.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/8c1ed2e3487acb7d86333d2f9c1084a8.png)
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b361641bdbd618a60d6e273e580b665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/125c877230389e4e885ee518950daae7.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
【推荐2】已知在扇形
中,点C、D是
上的两点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/20/18d1277e-9e93-41e7-8347-ed1143736a07.png?resizew=406)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/20/6597c66a-be08-4789-83fc-d83eb287ba8c.png?resizew=197)
(1)如图1,当
时,求弦
的长;
(2)如图2,联结
,交半径
于点E,当
//
时,求
的值;
(3)当四边形
是梯形时,试判断线段
能否成为
内接正多边形的边?如果能,请求出这个正多边形的边数;如果不能,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a28edc84801e123b1502bc9046d282.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/20/18d1277e-9e93-41e7-8347-ed1143736a07.png?resizew=406)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/20/6597c66a-be08-4789-83fc-d83eb287ba8c.png?resizew=197)
(1)如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/719d071fa86799218653af756956b7aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)如图2,联结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9211e017bd40c8931703f4cbb9c69ef9.png)
(3)当四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fecc971a4b3a58865aada5ec02d73a24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
名校
【推荐3】在平面直角坐标系
中,对于点
,点
和直线
,过点
作
,垂足为点
,若点
与
关于点
对称,则称点
为点
关于直线
和点
的垂直对称点.
已知
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/27/080b54a3-4254-4bc9-905f-c931bcb6dc6a.png?resizew=461)
(1)①点
关于
轴和点
垂直对称点的坐标为______;
②点
因为点
关于直线
和点
的垂直对称点,则点
到直线
的距离为______.
(2)如图1,点
关于直线
和点
的垂直对称点在直线
上,求
的值.
(3)如图2,点
为线段
的四等分点,且
,点
在
轴下方,且满足
,点
为点
关于
轴和点
的垂直对称点,过点
作
轴的垂线,分别交
轴和线段
于点
,
,点
为线段
的中点,直接写出
的长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a431edd18debb185c471b0efd95ed171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95e84f5c91c910aaafc5e74dbfbdf59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27149c9ff20937492950f42084caa019.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/27/080b54a3-4254-4bc9-905f-c931bcb6dc6a.png?resizew=461)
(1)①点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990eaf5dbba84f199bdc438da81fcfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
②点
![](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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14f8eda5a2bacdd0d011d8cf0620acdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)如图1,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6da2067c7d999cbfed5f504e57e6fac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)如图2,点
![](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/dd45a31ae7ab224b0ffe68b37234dfe4.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/12ebb7e82916a3266fbcdebff8c4de6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/97223e7c3ff2c78bdedae87a8ba66112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b46c607b3deac746c0ef3389ad8f65c.png)
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解答题-问答题
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解题方法
【推荐1】已知抛物线
与直线
交于
,B两点,与y轴交于点
.
(1)求抛物线的解析式;
(2)如图1,直线AB交
轴于点D,且
,求点B的坐标;
(3)如图2,当
时,在x轴上有且只有一点P,使
,求k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0310ce4692c85c9702f564923a55f98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e62dfe60e2f098c466a048b982151365.png)
(1)求抛物线的解析式;
(2)如图1,直线AB交
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/586fbeea37a46192582ee33df9295637.png)
(3)如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a4eaa80b44625890339d6a0065c241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9b9bb0f509e6f3d30858efb217c1f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/f5ef3139-c3fc-4659-9b5d-8fcd49f01135.png?resizew=400)
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【推荐2】已知抛物线y=ax2+2x+c过A(﹣1,0),C(0,3),交x轴于另一点B.点P是抛物线上一动点(不与点C重合),直线CP交抛物线对称轴于点N.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/5/d3044275-3bd7-44a8-8f64-c74d59f4e440.png?resizew=360)
(1)求抛物线的解析式;
(2)连接AN,当∠ANC=45°时,求P点的横坐标;
(3)如图2,过点N作NM⊥y轴于点M,连接AM,当AM+MN+CN的值最小时,直接写出N点的坐标.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/5/d3044275-3bd7-44a8-8f64-c74d59f4e440.png?resizew=360)
(1)求抛物线的解析式;
(2)连接AN,当∠ANC=45°时,求P点的横坐标;
(3)如图2,过点N作NM⊥y轴于点M,连接AM,当AM+MN+CN的值最小时,直接写出N点的坐标.
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【推荐1】在平而直角坐标系中,抛物线
(a是常数)经过点
.点A在抛物线上,且点A的横坐标为m,过点A作
轴于点B,当点A与点B不重合时,将线段
绕点B逆时针旋转
得到线段
,以
为邻边构造正方形
.
(1)求该抛物线对应的函数表达式;
(2)若点P是抛物线上一点,且在抛物线对称轴左侧.过点P作x轴的平行线交抛物线于另一点Q,连结
.当
时,求点P的坐标;
(3)若
,当抛物线与正方形
的边只有2个交点,且交点的纵坐标之差为
时,求m的值;
(4)当正方形
恰有两个顶点在抛物线上时,直接写出m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91bb0d290ce1591625a587fbcfb7d750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24624dffd30b66a5e4de57362b32b2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b5faf97cb142c3cbab7d3dcaece581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(1)求该抛物线对应的函数表达式;
(2)若点P是抛物线上一点,且在抛物线对称轴左侧.过点P作x轴的平行线交抛物线于另一点Q,连结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42a8ba3ea434605e0574339efc9c38f.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d911e720abfb1b8892747d79ddc8f4d.png)
(4)当正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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名校
【推荐2】如图1,在平面直角坐标系中,抛物线
与x轴交于
和
,与y轴交于点C,连接
.
(2)如图1,在x轴上有一动点D,平面内是否存在一点E,使以点A、D、C、E为顶点的四边形是菱形?若存在,请求出点E的坐标,若不存在,请说明理由.
(3)如图2,点M为抛物线上的一动点:
①若点M为直线
上方的抛物线上任意一点,过点M作y轴的平行线,交
于点N,过点M作x轴的平行线,交直线
于点Q,求
周长的最大值;
②若点M为抛物线上的任意一动点,且
,请直接写出满足条件的点M的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ffc79ad3c37fb879fb0b47f7a8da5f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f752d0257c9aae75e212755abc1b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc7d561b6e56aabf90e7c585c04f0e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5345f892125374809bcaaab5da8d3f5f.png)
(2)如图1,在x轴上有一动点D,平面内是否存在一点E,使以点A、D、C、E为顶点的四边形是菱形?若存在,请求出点E的坐标,若不存在,请说明理由.
(3)如图2,点M为抛物线上的一动点:
①若点M为直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed283a253b61df01f2a1cdc0cd8003f3.png)
②若点M为抛物线上的任意一动点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1cf95a902ee77532760db3132a5877e.png)
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