若抛物线
与直线
交y轴于同一点,且抛物线的顶点在直线
上,称该抛物线与直线互为“伙伴函数”,直线的伙伴函数表达式不唯一.
(1)求抛物线
的“伙伴函数”表达式;
(2)设互为“伙伴函数”的抛物线顶点坐标为(-k,t)且kt=4,它的一个“伙伴函数”表达式为y=4x+8,求该抛物线表达式;
(3)在若点P(m,y1))和Q(2,y2)在(2)中所求的抛物线上,且y1>y2时,请直接写出实数m的取值范围是______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e65110ccc4dacf7329516c9f6ace4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea76e0ea496d6a228d6861d38ace141.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a65934a6ab453da7b4e5068eb879866.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0781a9acdedd45dbdf6855f91ead86.png)
(2)设互为“伙伴函数”的抛物线顶点坐标为(-k,t)且kt=4,它的一个“伙伴函数”表达式为y=4x+8,求该抛物线表达式;
(3)在若点P(m,y1))和Q(2,y2)在(2)中所求的抛物线上,且y1>y2时,请直接写出实数m的取值范围是______.
更新时间:2022-03-29 14:46:47
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相似题推荐
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名校
【推荐1】在平面直角坐标系
中,直线
表示过
且垂直于
轴的直线,对某图形上的点
作如下变换:当
时,作点
关于直线
的对称点
,称为
变换;当
时,作点
关于
轴的对称点
,称为
变换,若某个图形上既有作
变换的点,又有作
变换的点,则称此图形为
双变换图形.
例如,已知
,
,如图
所示,当
时,点
应作
,变换后为
;点
应作
变换,变换后为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/13/0e000a73-5523-465f-9f1d-44f813d5d901.png?resizew=291)
(1)当
时,
已知点
,则
作相应变换后的坐标为 ,
若点
作相应变换后的点的坐标为
,则点
的坐标为 ,
(2)已知
,
,
若线段
是
双变换图形,则
的取值范围为 ,
已知点
在第四象限角平分线上,若
及其内部(点
除外)组成的图形是
双变换图形,且变换后所得图形记为
,直接写出所有图形
所覆盖的区域的面积为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2832f82fdeafa819c92ca5c1e74eb5ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/782171de3e89190f30167b4952354baf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a448220b37651247c6fc6ce25ae4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9662c06dbef4b614a3147e2521424481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c7ee528bee926b2cc4e0d422614bef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d643ce3e4edf6d59f854e2b05284ca60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9662c06dbef4b614a3147e2521424481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d643ce3e4edf6d59f854e2b05284ca60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb654dbe976f077495105b21b7963d0f.png)
例如,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab47bf43b2c5d6395129b80ddfbb1b24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb6fd712d967a36c027693a54f91470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b728120615031c19e731b61e8f31a498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb2cdefd122485729cc5ded8b2db0f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237022b498e2fcadbc97cf1b1998dedb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32587fef9f6c5a36d5b4566e3d0a1ce1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/13/0e000a73-5523-465f-9f1d-44f813d5d901.png?resizew=291)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33cc0f9aa168e43cc5759f017d69b498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0f9f734c03d04c21edefa08e0acc1fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75ee9fb7c3b399a05daaf33a790377c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5e0005baadf4e655c1b377487c8af8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb654dbe976f077495105b21b7963d0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/118fd6c0fd03f3994513a3bd584d05ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb654dbe976f077495105b21b7963d0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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解题方法
【推荐2】如图,在平面直角坐标系中,已知,点
,
,
,
,
,
满足
,
(1)直接写出点
,
,
的坐标及
的面积;
(2)如图2,过点
作直线
,已知
是
上的一点,且
,求
的取值范围;
(3)如图3,
是线段
上一点,
①求
,
之间的关系;
②点
为点
关于
轴的对称点,已知
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/296c31eaede57efe89ffb83f02ad4622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5612d598e27ac2ce0ab89fb63538bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541130d07517bebaee5f5577fe167023.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bed554f51e9179ffb1e4a01d402bb6bb.png)
(1)直接写出点
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)如图2,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d620f242099d9e5e3225115c80d9bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/518dfce0a9aab04171383586c5077146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1caa19b04f21503f174f3f935c47639a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)如图3,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
②点
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4839c33ccbe030b1028bc4d677a31b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/2021/7/5/2757820647727104/2802804333158400/STEM/bd432e58-2687-412a-a1cf-01d4d6990f00.png)
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【推荐3】对于三个数a,b,c,M{a,b,c}表示a,b,c这三个数的平均数,min{a,b,c}表示a,b,c这三个数中最小的数,如:
,min{﹣1,2,3}=﹣1;
,min{﹣1,2,a}=
;解决下列问题:
(1)填空:min{﹣22,
,
}=_______;
(2)若min{2,2x+2,4﹣2x}=2,求x的取值范围;
(3)①若M{2,x+1,2x}=min{2,x+1,2x},那么x=______;
②根据①,你发现结论“若M{a,b,c}=min{a,b,c},则_______(填a,b,c的大小关系);
③运用②解决问题:若M{2x+y+2,x+2y,2x﹣y}=min{2x+y+2,x+2y,2x﹣y},求x+y的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67795f004f3b2dd6884bfa8666f82ecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51db8ec6e2665d9ed3893e26daaaf934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd285c6cc0360fdef930dc050ee31e19.png)
(1)填空:min{﹣22,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de104c531e2c0689ea501f322433532f.png)
(2)若min{2,2x+2,4﹣2x}=2,求x的取值范围;
(3)①若M{2,x+1,2x}=min{2,x+1,2x},那么x=______;
②根据①,你发现结论“若M{a,b,c}=min{a,b,c},则_______(填a,b,c的大小关系);
③运用②解决问题:若M{2x+y+2,x+2y,2x﹣y}=min{2x+y+2,x+2y,2x﹣y},求x+y的值.
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【推荐1】综合与探究
如图,抛物线
与x轴交于点A(-1,0),点B(3,0),与y轴交于点C,对称轴与x轴交于点D,点P是直线BC上方抛物线上一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/18/6a53d483-4f71-4200-a881-6283c2d4d87a.png?resizew=400)
(1)求抛物线的解析式;
(2)在直线BC上方的抛物线上找一点P,作PG⊥BC,当PG为最大值时,求线段PD的长;
(3)连接CD、CB,当∠PCB=∠DCB时,求点P的坐标.
(4)若点M为直线BC上一点,N为平面内一点,是否存在这样的点M和点N使得以C、D、M、N为顶点的四边形是菱形?若存在,直接写出点M坐标;若不存在,说明理由.
如图,抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/415ce7008a89ffca8c3c3edbf13a935e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/18/6a53d483-4f71-4200-a881-6283c2d4d87a.png?resizew=400)
(1)求抛物线的解析式;
(2)在直线BC上方的抛物线上找一点P,作PG⊥BC,当PG为最大值时,求线段PD的长;
(3)连接CD、CB,当∠PCB=∠DCB时,求点P的坐标.
(4)若点M为直线BC上一点,N为平面内一点,是否存在这样的点M和点N使得以C、D、M、N为顶点的四边形是菱形?若存在,直接写出点M坐标;若不存在,说明理由.
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【推荐2】如图,已知直线
与抛物线
相交于点
和点
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/5/f9bee616-29eb-4a0d-9dc1-27b20178071a.png?resizew=163)
(1)求抛物线C函数表达式;
(2)若点M是位于直线
上方抛物线上的一动点,以
、
为相邻的两边作平行四边形
,当平行四边形
的面积最大时,求此时平行四边形
的面积S及点M的坐标;
(3)在抛物线C的对称轴上是否存在定点F,使抛物线C上任意一点P到点F的距离等于到直线
的距离?若存在,求出定点F的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738adf2924c78a3ee5eae4e0869e89f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a0066672fdf6e591b842847e5a6c7c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/5/f9bee616-29eb-4a0d-9dc1-27b20178071a.png?resizew=163)
(1)求抛物线C函数表达式;
(2)若点M是位于直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab3e0100e6788858ab43861933dd248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab3e0100e6788858ab43861933dd248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab3e0100e6788858ab43861933dd248.png)
(3)在抛物线C的对称轴上是否存在定点F,使抛物线C上任意一点P到点F的距离等于到直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a7a9836a301775c5649a55447aac1ab.png)
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【推荐1】如图,抛物线P:y1=a(x+2)2-3与抛物线Q:y2=
(x-t)2+1在同一个坐标系中(其中a、t均为常数,且t>0),已知抛物线P过点A(1,3),过点A作直线l∥x轴,交抛物线P于点B.
(1)a=________,点B的坐标是________;
(2)当抛物线Q经过点A时.
①求抛物线Q的解析式;
②设直线l与抛物线Q的另一交点记作C,求
的值;
(3)若抛物线Q与线段AB总有唯一的交点,直接写出t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)a=________,点B的坐标是________;
(2)当抛物线Q经过点A时.
①求抛物线Q的解析式;
②设直线l与抛物线Q的另一交点记作C,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/746853ea6d76bd7cccc6bdd6c739aed7.png)
(3)若抛物线Q与线段AB总有唯一的交点,直接写出t的取值范围.
![](https://img.xkw.com/dksih/QBM/2020/7/1/2496641218396160/2496961512505344/STEM/c5507d9108f34061a5f0f660f4366d88.png?resizew=246)
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【推荐2】如图,函数
(
)的图象过原点,将其沿
轴翻折,得到函数
的图象,把函数
与
的图象合并后称为函数
的图象.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/b66b9d74-3205-416c-a5d1-49c8cb0f82ce.png?resizew=183)
(1)
的值为 ;函数
的解析式为 (注明
的取值范围);对于函数
,当函数值
随
的增大而增大时,
的取值范围是 ;
(2)当直线
与函数
的图象有
个交点时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e92f79708270bb435aa6d128c25c9c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/b66b9d74-3205-416c-a5d1-49c8cb0f82ce.png?resizew=183)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07565f10847840e0fb07b05218ad17fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐1】如图,抛物线
与
轴相交于点
,
(点
在点
的左侧),与
轴相交于点
,点
的坐标为
,
经过
三点,且圆心
在
轴上.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/7/666217fa-5798-4bba-ae1e-5831c9e1d8b3.png?resizew=238)
(1)求
的值.
(2)求
的半径.
(3)过点
作直线
,交
轴于点
,当直线
与抛物线只有一个交点时直线
是否与
相切?若相切,请证明;若不相切,请求出直线
与
的另外一个交点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ef95a69e3f767fdd2227d1fd5c06ce0.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a812a9b58ccba331cfd21d244329af01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/7/666217fa-5798-4bba-ae1e-5831c9e1d8b3.png?resizew=238)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.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,抛物线
分别交
轴,
轴于点A,
和点
,抛物线
与抛物线
关于直线
对称,两条抛物线的交点为
,
(点
在点
的左侧).
![](https://img.xkw.com/dksih/QBM/2022/2/20/2920492735922176/3062252979814400/STEM/1b68e2b273eb4892927ebd8aab70d76f.png?resizew=509)
(1)求抛物线
的表达式;
(2)将抛物线
沿
轴正方向平移,使点
与点
重合,求平移的距离;
(3)在(2)的条件下:规定抛物线
和抛物线
在直线
下方的图象所组成的图象为
,点
,
和
,
在函数
上(点
在点
的右侧),在(2)的条件下,若
,且
,求点
坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/453c918969dadb6e6c9d0f4be4c8a393.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/41a5ff72ba4e9d01ecf0c0fe07a48058.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2022/2/20/2920492735922176/3062252979814400/STEM/1b68e2b273eb4892927ebd8aab70d76f.png?resizew=509)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)将抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(3)在(2)的条件下:规定抛物线
![](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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/033ccd1ebf578e1727d7907379fa828a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a350eb41c3b7e4face9c3299eff9d49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e3c5d2e75308c341c6ddda9402eb64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24529eadaef974ec0625f8ca40682e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.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/1292c47f62023b747f1a4bd615c75284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08aeab36f3c3546b641470aad464ebd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次