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1、一、复合题1.(2012 湖北省恩施自治州)如图,已知抛物线2yxbxc与一直线相交于(10)A,(2 3)C,两点,与y轴交于点N,其顶点为D(1)求抛物线及直线AC的函数关系式;(2)设点(3)Mm,求使MNMD的值最小时m的值;(3)若抛物线的对称轴与直线AC相交于点B,E为直线AC上任意一点,过E作EF BD交抛物线于点F,以BDEF,为顶点的四边形能否为平行四边形?若能,求点E的坐标;若不能,请说明理由;(4)若P是该抛物线上位于直线AC上方的一动点,求APC面积的最大值2.(2012 浙江省丽水市)在直角坐标系中,点A是抛物线2yx在第二象限上的点,连结OA,过点O作OBOA,交抛
2、物线于点B,以OA、OB为边构造矩形AOBC(1)如图 1,当点A的横坐标为 _时,矩形AOBC是正方形;(2)如图 2,当点A的横坐标为12时求点B的坐标;将抛物线2yx作关于x轴的轴对称变换得到抛物线2yx,试判断抛物2yx经过平移变换后,能否经过ABC,三点?如果可以,说出变换的过程;如果不可以,请说明理由3.(2012 江西省)如图,已知二次函数2143Lyxx与x轴交于A、B两点(点A在点B的左边),与y轴交于点C(1)写出A、B两点的坐标;(2)二次函数2243(0)Lykxkxk k,顶点为P直接写出二次函数2L与二次函数1L有关图象的两条相同的性质;是否存在实数k,使ABP为等
3、边三角形?如存在,请求出k的值;如不存在,请说明理由;若直线8yk与抛物线2L交于E、F两点,问线段EF的长度是否发生变化?如果不会,请求出EF的长度;如果会,请说明理由4.(2012 上海市)如图,在平面直角坐标系中,二次函数26yaxxc的图象经过点(4 0)(1 0)AB,、,与y轴 交 于 点C,点D在 线 段OC上,ODt,点E在 第 二 象 限,90ADE,1tan2DAEEFOD,垂足为F(1)求这个二次函数的解析式;(2)求线段EFOF、的长(用含t的代数式表示);(3)当ECAOAC时,求t的值5.(2012 内蒙古赤峰市)如图,抛物线25yxbx与x轴交于AB、两点(点A在
4、点B的左侧),与y轴交于点C,点C与点F关于抛物线的对称轴对称,直线AF交y轴于点E,5 1OCOA:(1)求抛物线的解析式;(2)求直线AF的解析式;(3)在直线AF上是否存在点P,使CFP是直角三角形,若存在,求出P点坐标,若不存在,说明理由6.(2012 山东省日照市)如图,二次函数2yxbxc的图象与x轴交于A、B两点,且A点坐标为(-3,0),经过B点的直线交抛物线于点D(-2,-3).(1)求抛物线的解析式和直线BD解析式;(2)过x轴上点E(a,0)(E点在B点的右侧)作直线EFBD,交抛物线于点F,是否存在实数a使四边形BDFE是平行四边形?如果存在,求出满足条件的a;如果不存
5、在,请说明理由.文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:
6、CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10
7、HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 Z
8、V9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编
9、码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U1
10、0 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9
11、 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P3文档编码:CK1D6D2J7U10 HM5G6L3H7C9 ZV9S3L2N6P37.(2012 黑龙江省齐齐哈尔市)如图,抛物线212yxbxc与x轴交于AB、两点,与y轴交于点C,且2OA,3OC(1)求抛物线的解析式(2)若点(2 2)D,是抛物线上一点,那么在抛物线的对称轴上,是否存在一点P,使得BDP的周长最小,若存在
12、,请求出点P的坐标,若不存在,请说明理由注:二次函数2(0)yaxbxc a的对称轴是直线2bxa8.(2012 浙江省杭州市)本小题满分12 分)在平面直角坐标系中,反比例函数与二次函数2(1)yk xx的图象交于点(1)Ak,和点(1)Bk,(1)当2k时,求反比例函数的解析式;(2)要使反比例函数与二次函数都是y随着x的增大而增大,求k应满足的条件以及x的取值范围;(3)设二次函数的图象的顶点为Q,当ABQ是以AB为斜边的直角三角形时,求k的值9.(2012 福建省南平市)12 分)在平面直角坐标系中,矩形OABC如图所示放置,点A在x轴上,点B的坐标为(m,1)(m0)将此矩形绕点O逆
13、时针旋转90,得到矩形CBAO(1)写出点A、A、C的坐标;(2)设过点A、A、C的抛物线解析式为cbxaxy2,求此抛物线的解析式;(cba、可用含m的式子表示)(3)试探究:当m的值改变时,点B关于点O的对称点D是否可能落在(2)中的抛物线上?若能,请求出此时m的值10.(2012 湖南省郴州市)如图,已知抛物线2yaxbxc经过A(4,0),B(2,3),C(0,3)三点.(1)求抛物线的解析式及对称轴.(2)在抛物线的对称轴上找一点M,使得MA+MB的值最小,并求出点M的坐标.(3)在抛物线上是否存在一点P,使得以点A、B、C、P四点为顶点所构成的四边形为梯形?若存在,请求出点P的坐标
14、;若不存在,请说明理由.C B A C O A B x y 文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7
15、I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q
16、8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H
17、5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3
18、I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E
19、9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM
20、6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O1011.(2012 吉林省长春市)如图,在平面直角坐标系中,直线242yx交x轴于点A,交直线yx交于点B.抛物线22yaxxc分别交线段AB、OB于点C、D,点C和点D的横坐标分别为16 和 4,点P在这
21、条抛物线上.(1)求点C、D的纵坐标.(2)求a、c的值.(3)若Q为线段OB上一点,且P、Q两点的纵坐标都为5,求线段PQ的长.(4)若Q为线段OB或线段AB上一点,PQx轴.设P、Q两点之间的距离为d(d0),点Q的横坐标为m,直接写出d随m的增大而减小时m的取值范围.参考公式:二次函数2yaxbxc(a0)图象的顶点坐标为24()24,bacbaa12.(2012 四川省资阳市)(本小题满分9 分)抛物线214yxxm的顶点在直线3yx上,过点F(2,2)的直线交该抛物线于点M、N两点(点M在点N的左边),MAx轴于点A,NBx轴于点B(1)(3 分)先通过配方求抛物线的顶点坐标(坐标可
22、用含m的代数式表示),再求m的值;(2)(3 分)设点N的横坐标为a,试用含a的代数式表示点N的纵坐标,并说明NFNB;(3)(3 分)若射线NM交x轴于点P,且PAPB1009,求点M的坐标13.(2012 四川省达州市)12分)如图1,在直角坐标系中,已知点A(0,2)、点B(2,0),过点B和线段OA的中点C作直线BC,以线段BC为边向上作正方形BCDE.(1)填空:点D的坐标为(),点E的坐标为().(2)若抛物线)0(2acbxaxy经过A、D、E三点,求该抛物线的解析式.(3)若正方形和抛物线均以每秒5个单位长度的速度沿射线BC同时向上平移,直至正方形的顶点E落在y轴上时,正方形和
23、抛物线均停止运动.在运动过程中,设正方形落在y轴右侧部分的面积为s,求s关于平移时间t(秒)的函数关系式,并写出相应自变量t的取值范围.运动停止时,求抛物线的顶点坐标.文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J
24、1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7
25、I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q
26、8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H
27、5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3
28、I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E
29、9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O1014.(2012 辽宁省大连市)如图,ABC中,908CACo,cm,6BCcm,点PQ、同时从
30、点C出发,以 1cm/s 的速度分别沿CACB、匀速运动,当点Q到达点B时,点PQ、同时停止运动.过点P作AC的垂线l交AB于点R,连接PQRQ、,并作PQR关于直线l对称的图形,得到PQ R.设点Q的运动时间为t(s),PQ R与PAR重叠部分的面积为2(cm)S.(1)t为何值时,点Q恰好落在AB上?(2)求S与t的函数关系式,并写出t的取值范围;(3)S能否为29cm8?若能,求出此时的t值,若不能,说明理由.15.(2012 福建省三明市)本题满分12 分)已知直线25yx与x轴和y轴分别交于点A和点B,抛物线2yxbxc的顶点M在直线AB上,且抛物线与直线AB的另一个交点为N(1)如
31、图,当点M与点A重合时,求:抛物线的解析式;(4 分)点N的坐标和线段MN的长;(4 分)(2)抛物线2yxbxc在直线AB上平移,是否存在点M,使得OMN与AOB相似?若存在,直接写出点M的坐标;若不存在,请说明理由(4 分)二、信息迁移16.(2012 陕西省)(本题满分10 分)如果一条抛物线2(0)yaxbxc a与x轴有两个交点,那么以该抛物线的顶点和这两个交点为顶点的三角形称为这条抛物线的“抛物线三角形”(1)“抛物线三角形”一定是_ 三角形;(2)若抛物线2(0)yxbx b的“抛物线三角形”是等腰直角三角形,求b的值;(3)如图,OAB是抛物线2(0)yxb x b的“抛物线三
32、角形”,是否存在以原点O为对称中心的矩形ABCD?若存在,求出过O、C、D三点的抛物线的表达式;若不存在,说明理由文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8
33、O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5
34、J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I
35、7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9
36、Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6
37、H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X
38、3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10三、猜想、探究题17.(2012 浙江省绍兴市)如图,矩形OABC的两边在坐标轴上,连结AC,抛物线242yxx经过A,B两点(1)求A点坐标及线段A
39、B的长;(2)若点P由点A出发以每秒1 个单位的速度沿AB边向点 B移动,1 秒后点Q也由点A出发以每秒7 个单位的速度沿AO,OC,CB边向点B移动,当其中一个点到达终点时另一个点也停止移动,点P的移动时间为t秒当PQAC时,求t的值;当PQAC时,对于抛物线对称轴上一点H,HOQPOQ,求点 H 的纵坐标的取值范围18.(2012 四川省宜宾市)如图,抛物线22yxxc的顶点A在直线l:5yx上.(1)求抛物线顶点A的坐标;(2)设抛物线与y轴交于点B,与x轴交于点C、D(C点在D点的左侧),试判断ABD的形状;(3)在直线l上是否存在一点P,使以点PABD、为顶点的四边形是平行四边形,若
40、存在,求点P的坐标;若不存在,请说明理由19.(2012 内蒙古呼和浩特市)如图,抛物线2(0)yaxbxc a与双曲线kyx相交于点A,B,且抛物线经过坐标原点,点A的坐标为(2 2),点B在第四象限内,过点B作直线BCx轴,点C为文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ
41、7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3
42、Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码
43、:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2
44、HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 Z
45、S3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档
46、编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10直线BC与抛物线的另一交点,已
47、知直线BC与x轴之间的距离是点B到y轴的距离的4 倍,记抛物线顶点为E(1)求双曲线和抛物线的解析式;(2)计算ABC与ABE的面积;(3)在抛物线上是否存在点D,使ABD的面积等于ABE的面积的8 倍若存在,请求出点D的坐标;若不存在,请说明理由20.(2012 浙江省温州市)如图,经过原点的抛物线22(0)yxmx m与x轴的另一个交点为A.过点(1)Pm,作直线PMx轴于点 M,交抛物线于点B.记点B关于抛物线对称轴的对称点为C(B、C不重合).连结CB,CP.(1)当3m时,求点A的坐标及BC的长;(2)当1m时,连结CA,问m为何值时CACP?(3)过点P作PEPC且PEPC,问是否
48、存在m,使得点E落在坐标轴上?若存在,求出所有满足要求的m的值,并写出相对应的点E坐标;若不存在,请说明理由.21.(2012 江苏省连云港市)如图,抛物线2yxbxc与x轴交于AB、两点,与y轴交于点C,点O为坐标原点,点D为抛物线的顶点,点E在抛物线上,点F在x轴上,四边形OCEF为矩形,且2OF,3EF(1)求抛物线所对应的函数关系式;(2)求ABD的面积;(3)将AOC绕点C逆 时针旋转90,点A对应点为点G,问点G是否在该抛物线上?请说明理由22.(2012 福建省宁德市)如图,在平面直角坐标系中,直线22xy交x轴于点A,交y轴于点B,将AOB绕原点O顺时针旋转90o后得到COD,
49、抛物线l经过点A、C、D(1)求点A、B的坐标;(2)求抛物线l的解析式;(3)已知在抛物线l与线段AD所围成的封闭图形(不含边界)中,存在点),(baP,使得PCD是等腰三角形,求a的取值范围文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O
50、10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J1A8X2 HJ7X3I7I7Q7 ZS3Q7E9Q8O10文档编码:CM6H5J