抛物线
经过点
和点
.
(1)求证:
;
(2)若抛物线经过点
,点D在抛物线上,且点D在第二象限,并满足
,求点D的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8352b2e643a7ce605334f1b0e572bfb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a525534689bd2701205d4ab17574c39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3322382f3000c819d334658c1b192cd.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3eefa9a96819b89389fc7cdd5718c3.png)
(2)若抛物线经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437f923730cfbd1bc6f62738d607eca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0ea6d0ce9e95418b128fc1158e46784.png)
更新时间:2023-10-26 10:53:56
|
相似题推荐
解答题-问答题
|
较难
(0.4)
【推荐1】如图,在平面直角坐标系中,函数
的图像分别交x轴、y轴于A、B两点,过点A的直线交y轴正半轴于点M,且点M为线段
的中点.
的函数解析式;
(2)若点C是直线
上一点,且
,求点C的坐标;
(3)点P为x轴上一点,当
时,请直接写出满足条件的点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab8aa8c8873b8175813273a6b6556bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
(2)若点C是直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/945edfb4c6647628a34702d3180f64cc.png)
(3)点P为x轴上一点,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09ff9734d26aa66d0b01e41edfbea2ff.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】如图,
.动点
从点
出发,沿
轴以每秒
个单位长度的速度向右移动,过点
的直线
也随之移动.设移动时间为
秒.
![](https://img.xkw.com/dksih/QBM/2020/11/2/2584234862804992/2585785064628224/STEM/ccd1a0515cf646fbb1b5aa76469fd195.png?resizew=228)
(1)当
时,求直线
的解析式;
(2)若直线
与线段
有公共点,求
的取值范围;
(3)当点
关于直线
的对称点落在坐标轴上时,请直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f361759ec44d8110458957f55af6a2.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad6580b23e0576b82e7233f49583ab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://img.xkw.com/dksih/QBM/2020/11/2/2584234862804992/2585785064628224/STEM/ccd1a0515cf646fbb1b5aa76469fd195.png?resizew=228)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbeede118c407a800b05757b9a1393e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)当点
![](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/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐1】综合与探究
如图,在平面直角坐标系中,抛物线
与
轴交于点
、
,与
轴交于点
,连接
,
,对称轴为
,点
为此抛物线的顶点.
![](https://img.xkw.com/dksih/QBM/2022/1/3/2886327207788544/2888424024006656/STEM/631cd572-6d33-40e4-842b-ba04b5dcc939.png?resizew=176)
![](https://img.xkw.com/dksih/QBM/2022/1/3/2886327207788544/2888424024006656/STEM/0721ef5c-ee66-4939-8517-17b5c37d4f78.png?resizew=188)
(1)求抛物线的解析式;
(2)抛物线上
,
两点之间的距离是________;
(3)点
是第一象限内抛物线上的动点,连接
和
.求
面积的最大值;
(4)点
在抛物线对称轴上,平面内存在点
,使以点
、
、
、
为顶点的四边形为矩形,请直接写出点
的坐标.
如图,在平面直角坐标系中,抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266c97da6fdbfbc2d06e9f480286f566.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52705567101a48893de582656ef41527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/2022/1/3/2886327207788544/2888424024006656/STEM/631cd572-6d33-40e4-842b-ba04b5dcc939.png?resizew=176)
![](https://img.xkw.com/dksih/QBM/2022/1/3/2886327207788544/2888424024006656/STEM/0721ef5c-ee66-4939-8517-17b5c37d4f78.png?resizew=188)
(1)求抛物线的解析式;
(2)抛物线上
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
(4)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)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】在平面直角坐标系中,抛物线
与
轴交于
、
两点(点
在点
的左侧),与
轴交于点
,连接
,
.
(1)求抛物线的表达式;
(2)点
为直线
上方抛物线上一动点,连接
交
于点
,连接
.当
时,求点
的坐标;
(3)点
为抛物线上的点,当
时,直接写出点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c9800e4b992044d16681e77ff6563c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)求抛物线的表达式;
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f68843725da5f802392347630cfe12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5723b60fcc60887face18fdfed5d8c92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐1】如图1,在平面直角坐标系中,
,过C作
轴于B.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/4/665c49a5-a0e4-4e2d-8202-6c1f1ad24c81.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/4/e0e3df95-cf4a-4805-a898-915e9e62be5f.png?resizew=416)
(1)如图1,则三角形
的面积_____________;
(2)如图2,若过B作
交y轴于D,则
的度数为_____________;若
分别平分
,求
的度数;
(3)若线段
与y轴交点M坐标为
,在y轴上是否存在点P,使得三角形
和三角形
的面积相等?若存在,求出P点坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85472f1fbce6137612f964b6585b232a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02db4a8c065ddf418ce67b8a98a29c8c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/4/665c49a5-a0e4-4e2d-8202-6c1f1ad24c81.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/4/e0e3df95-cf4a-4805-a898-915e9e62be5f.png?resizew=416)
(1)如图1,则三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)如图2,若过B作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/befc496ed3bc546f9f9531b84c382ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307f0144a201e0025540729907e39e96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e88d8672e8521e27058252f51000281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561c994a7a5757c47ca55fe46a1bf55b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd1bc0388e7fad3e849ca39c67f5034.png)
(3)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3df5935c893580c77ab6fa6eb0a70bdb.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】操作:将一个含30°角的直角三角形放在一长方形纸片上,
(1)如图1所示,直角顶点P在长方形的边AB上,直角边交长方形的两边AD、BC于点E、F,如果图中的∠1=140°,那么∠2= 度.
(2)如图2所示,直角顶点P在长方形内,且长方形的顶点A、B在∠P的直角边上,那么图中的∠1与∠2会有怎样的关系?为什么?
(3)如果将30°角如图3摆放,使得长方形的顶点A、B在30°角的两边上,此时,你认为图中的∠1与∠2会有怎样的关系?请直接写出你的结论: .
(1)如图1所示,直角顶点P在长方形的边AB上,直角边交长方形的两边AD、BC于点E、F,如果图中的∠1=140°,那么∠2= 度.
(2)如图2所示,直角顶点P在长方形内,且长方形的顶点A、B在∠P的直角边上,那么图中的∠1与∠2会有怎样的关系?为什么?
(3)如果将30°角如图3摆放,使得长方形的顶点A、B在30°角的两边上,此时,你认为图中的∠1与∠2会有怎样的关系?请直接写出你的结论: .
![](https://img.xkw.com/dksih/QBM/2019/10/31/2323684901576704/2325054377836545/STEM/5992001980264d9c85efbf687d10c06d.png?resizew=542)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
真题
【推荐1】在平面直角坐标系中,直线
交
轴于点
,交
轴于点
,抛物线
经过点
,与直线
交于点
.
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/93f8e20a394c4e5299b22b7f62579d09.png)
(1)求抛物线的解析式;
(2)如图,横坐标为
的点
在直线
上方的抛物线上,过点
作
轴交直线
于点
,以
为直径的圆交直线
于另一点
.当点
在
轴上时,求
的周长;
(3)将
绕坐标平面内的某一点按顺时针方向旋转
,得到
,点
的对应点分别是
.若
的两个顶点恰好落在抛物线上,请直接写出点
的坐标.
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/6ae589955e5c4c4187417f0b6da810f1.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/4817daab0bad42c386fd73c8f53581af.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/c884f8bee3dd410fbdeed58eb20ca4ac.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/f0b24fdd719d4f87b8559a40c85540ef.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/63022552e40c425c9a5f1fa910f93632.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/d2c5fc9b0ed34b688f1ae50b9d2e46a6.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/c884f8bee3dd410fbdeed58eb20ca4ac.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/6ae589955e5c4c4187417f0b6da810f1.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/08f7d32158f84d8fa4559f1e83f3108e.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/93f8e20a394c4e5299b22b7f62579d09.png)
(1)求抛物线的解析式;
(2)如图,横坐标为
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/6c1ec2878018426b822928fd4f6e0303.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/613d987beff34c3196e808aaa2b12651.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/9434abe7e23a4f08b54c0aeecc53b219.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/613d987beff34c3196e808aaa2b12651.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/abb167212a3f4328b722cfd933fd2535.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/9434abe7e23a4f08b54c0aeecc53b219.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/784375e68adc4d85b0983cdaf7c9c68a.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/7a0592f9cc1f41fb80c7919b8bf5e82e.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/9434abe7e23a4f08b54c0aeecc53b219.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/021fb5cfc2fe4f7f9f933f6a366084f0.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/784375e68adc4d85b0983cdaf7c9c68a.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/f0b24fdd719d4f87b8559a40c85540ef.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/18d9bd506c5c47e998b8dd740b1214ca.png)
(3)将
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/07f38a3825704f2c8494f530862e2768.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/51531e1fc693482f8b073d691832b702.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/d4bbe094437f47c89b8ec69f40e24786.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/97a1d1758b1342a582709e810a6701a8.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/4a38307c94dc4c5fa93dadc19f4e6463.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/d4bbe094437f47c89b8ec69f40e24786.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773762304360448/1773762304811008/STEM/89c2ef48431548cbae5799de4ca0192f.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
过点
和
,与
轴交于另一点
,顶点为
.
(1)求
,
满足的关系式;
(2)对于抛物线上的任意两点
,
,当
时,恒有
.
①求抛物线解析式;
②
与
的延长线交于点
,在
轴上方的抛物线上是否存在点
,使得
.若存在,求出一个符合条件的点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88cc7d1f9ac083ce49956c4f361b3b46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c052d7af2f98d95bac8725b608fba0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)对于抛物线上的任意两点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b225d772013d021cf1bfe7b9421fa5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b7e35faab6d74fa0c36599c39d1698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1292c47f62023b747f1a4bd615c75284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba5d08772d26d6f329e5b3a5b6cacbd.png)
①求抛物线解析式;
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.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/3523d81959b3cec74f6bf92d8459b279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次