如图,已知在平面直角坐标系
中,直线
与x轴相交于点A,与y轴相交于点B,抛物线
经过点B和点
,顶点为D.
的表达式及顶点D的坐标;
(2)设抛物线与x轴的另一个交点为E,若点P在y轴上,当
时,求点P的坐标;
(3)将抛物线
平移,得到抛物线
,平移后抛物线
的顶点D落在x轴上的点M处,将
沿直线
翻折,得到
,如果点Q恰好落在抛物线
的图像上,求平移后的抛物线
的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9068a52202cf56a4aeaf55902a95d83f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e40985ea38bd9d98f2733ff239c2206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37df9dad3961893b22d6639c4311e267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)设抛物线与x轴的另一个交点为E,若点P在y轴上,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a1d4f5796468c8cd9cd9734097f0b71.png)
(3)将抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e8c7968d57d2a20065a7cb15c9b4eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
23-24九年级下·上海崇明·期中 查看更多[3]
更新时间:2024-04-26 12:09:39
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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,已知抛物线
的图象交
轴于
,
两点(点
在点
的左侧),过点
的直线
与抛物线交于另一点
,交
轴于点
,且点
的横坐标是
,点
的坐标是
.
(1)求抛物线的函数表达式.
(2)过点
作
交
于点
,若点
是线段
上的一个动点,求出当
与
相似时点
的坐标.
(3)设抛物线的顶点为
,过点
的直线
交抛物线于另一点
,试探究:是否存在常数
,使得以
为直径的圆过点
,若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc90b02a4cd1425aabfc192b1cdee17.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5eaa802391c8fb6e6ebbe8aa41a337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9563540452712a60d70f76cf22a868c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97b3c94d505e7c5bcce94afec4af3d92.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/31/827a66e3-a39f-4169-a5f8-6a579a99a19b.png?resizew=128)
(1)求抛物线的函数表达式.
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/077c3c30c66aa94afb935664dbe76501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/323eb2e41f461ac655012a986d5a27bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(3)设抛物线的顶点为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4ff73fcc0462b23ae27d555475ada8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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【推荐2】如图,抛物线
与直线
交于
两点,点
在
轴上,过点
作
轴于点
,且
.
(1)求抛物线的解析式.
(2)将
沿
方向平移到
.
①如图2,若
经过点
与
轴交于点
,求
的值.
②如图3,直线
与抛物线
段交于点
,与直线
交于点
,当顶点
在线段
上移动时,求
与
公共部分面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53be61cd85ec86aabd164cae0265246b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca621dc42304f844ac15dad7062d3959.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/d2241bd71e0c20867029e489f9ba655d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46ec4f9b054bcf930edc6c496dc349e6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/22/70f3c026-53c8-4257-90e6-32e6be9d69b4.png?resizew=436)
(1)求抛物线的解析式.
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbf9680f74a9ac5d934304654ce2771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
①如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937c2870ed911dc01b38a4d9dc53b5dd.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/be3154f50e442cee8aa6b03156d92483.png)
②如图3,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d585d2d6643471640905d234d9538c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3de0022a7f2e122492f1483e4d3cccba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7189182cc23d759be2764d141952737b.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,已知二次函数
与
轴交于点A(
,0),B(4,0),与
轴交于点
.
(2)连接AC,BC,点
是直线
上方抛物线上一点,过点
作
//
交直线
于点
,
//
轴交直线
于点
,求△PDE周长的最大值及此时点
的坐标;
(3)在(2)的条件下,将原抛物线向左平移
个单位长度得到新抛物线
,点
是新抛物线
对称轴上一点,点
是平面直角坐标系内一点,当点
,
,
,
为顶点的四边形是菱形时,请直接写出所有符合条件的
点的坐标,并任选一点,写出求解过程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39dd70f6ef25a564c638be6c576585ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)连接AC,BC,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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/dad2a36927223bd70f426ba06aea4b45.png)
(3)在(2)的条件下,将原抛物线向左平移
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4d2174f411d9db6ab7b2aea47818cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4d2174f411d9db6ab7b2aea47818cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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较难
(0.4)
名校
【推荐2】已知:抛物线l,y=x2+bx+c与x轴交于点A和点B(3,0),与y轴交于点C(0,﹣3).
(1)求抛物线l的顶点P的坐标为的A的坐标;
(2)将抛物线l先向上平移3个单位长度,再向左平移2个单位长度,得到抛物线l1,请直接写出平移后的抛物线l1的表达式;
(3)将抛物线l向右平移m个单位长度,得到抛物线l2,其中点A的对应点为点M,若点M、A、P是恰好一个矩形的三个顶点,请求出m的值
(1)求抛物线l的顶点P的坐标为的A的坐标;
(2)将抛物线l先向上平移3个单位长度,再向左平移2个单位长度,得到抛物线l1,请直接写出平移后的抛物线l1的表达式;
(3)将抛物线l向右平移m个单位长度,得到抛物线l2,其中点A的对应点为点M,若点M、A、P是恰好一个矩形的三个顶点,请求出m的值
您最近一年使用:0次
【推荐1】将两个等腰直角三角形纸片
和
放在平面直角坐标系中,已知点A坐标为
,
,
,
,并将会
绕点O顺时针旋转.
![](https://img.xkw.com/dksih/QBM/2021/6/2/2734191618760704/2734233367650304/STEM/d79efec7-b4b5-4199-8318-e571ebc9d166.png)
(Ⅰ)当旋转至如图①的位置时,
,求此时点C的坐标;
(Ⅱ)如图②,连接
,当
旋转到y轴的右侧,且点B,C,D三点在一条直线上时,求
的长;
(Ⅲ)当旋转到使得
的度数最大时,求
的面积(直接写出结果即可).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4807ca16360c0cca436e59d4be98f626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d7926cb5edef9dc7d29453e9304fc2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92fba1b232523de7fce2d2334b7c496.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da57a490156786d4fc48f67bbf769d8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8cc88685997c7586d1d4bf75a055433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4807ca16360c0cca436e59d4be98f626.png)
![](https://img.xkw.com/dksih/QBM/2021/6/2/2734191618760704/2734233367650304/STEM/d79efec7-b4b5-4199-8318-e571ebc9d166.png)
(Ⅰ)当旋转至如图①的位置时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72dbe710cca6662be5cc0c26a0d12a4.png)
(Ⅱ)如图②,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4807ca16360c0cca436e59d4be98f626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(Ⅲ)当旋转到使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5c3ca226db5d490fa92bb1b7c8deb14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7bd8bfbd43d0cf1604b8d7e0023f57.png)
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解答题-证明题
|
较难
(0.4)
名校
【推荐2】如图,
内接于
,
,
,垂足为E,直线
交
于点D.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/6/5ff521f0-4061-4a7f-8975-e2a2e424e746.png?resizew=379)
(1)如图1,求证:
为
的直径;
(2)如图2,在
上截取
,连接
并延长交
于点F,求证:
;
(3)如图3,在(2)的条件下,作
,垂足为H,K为
边的中点,连接
,若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/6/5ff521f0-4061-4a7f-8975-e2a2e424e746.png?resizew=379)
(1)如图1,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650159560e11a252f791d5d940ff6f54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf23e73ae2a15c04bbed3981cb8e511.png)
(3)如图3,在(2)的条件下,作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e895aa0d85f612d4c33608aefbb0de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7a8f1bb76ce6165559a590f88b2787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545c81c8f5d3b50e0d60b9f783fe429f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86338536656046e93b53672ade9a78b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b95463a97c60db3250cb641bf6523d.png)
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解答题-问答题
|
较难
(0.4)
名校
【推荐1】如图,已知直角坐标平面上的
,
,
,且
,
,
.若抛物线
经过
、
两点.
![](https://img.xkw.com/dksih/QBM/2018/10/31/2065395255730176/2066312383938560/STEM/92c68a7ec29f40fe90870a75ae196378.png?resizew=139)
求
、
的值;
将抛物线向上平移若干个单位得到的新抛物线恰好经过点
,求新抛物线的解析式;
设
中的新抛物的顶点
点,
为新抛物线上
点至
点之间的一点,以点
为圆心画图,当
与
轴和直线
都相切时,连接
、
,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49ea876dd79d6dd4bf30c8af6438dc21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b82862a3ea06d5c719ac26406d19f4ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f95e8632b61f9a1597954b6847b63c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a381c20348fe2345856551cf0ca47b24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/958c9bface1ae9c373282a2b310b1153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1cc0f95f595ecc88ebe433690a14ebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/2018/10/31/2065395255730176/2066312383938560/STEM/92c68a7ec29f40fe90870a75ae196378.png?resizew=139)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bb89a362c1faf4d0c306eabbb59710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92dadc7fa704f555d795c3734142ed78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e430f13f42cf2d44aa0f0e20b959684f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15bdee7807edba89958c84bf4bb85f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17dc793657d17c8eb2153c757dfd4d01.png)
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解答题-问答题
|
较难
(0.4)
【推荐2】若二次函数
与
的图象关于点
成中心对称图形,我们称
与
互为“中心对称”函数.
(1)求二次函数
的“中心对称”函数的解析式;
(2)若二次函数
的顶点在它的“中心对称”函数图象上,且当
时,y最大值为2,求此二次函数解析式.
(3)二次函数
的图象顶点为M,与x轴负半轴的交点为A、B,它的“中心对称”函数
的顶点为N,与x轴的交点为C、D,从左往右依次是A、B、C、D,若
,且四边形
为矩形,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e94556fc78e40aef7e9a3212f1ae24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c56c4470b8458d43bff92423caf83a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f449cadb49859b80c31ef1f68bfe81b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
(1)求二次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3011939315dd9289daff02fe94e8c9e5.png)
(2)若二次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/856efbc951ade577bb87cb24f0a1c7f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee313050b07ab6facea613cd1f6492b.png)
(3)二次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be361af3a95b70b85724b35ce9b5a3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85177448549985501b9e7142c0ce4622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a6fa5218491da01843cdfde0c3dcbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2321c8b7bfe7289f553f5d0ae6660bdf.png)
您最近一年使用:0次