各地中考压轴题二次函数.pdf

上传人:Q****o 文档编号:56602546 上传时间:2022-11-02 格式:PDF 页数:36 大小:1.11MB
返回 下载 相关 举报
各地中考压轴题二次函数.pdf_第1页
第1页 / 共36页
各地中考压轴题二次函数.pdf_第2页
第2页 / 共36页
点击查看更多>>
资源描述

《各地中考压轴题二次函数.pdf》由会员分享,可在线阅读,更多相关《各地中考压轴题二次函数.pdf(36页珍藏版)》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。

1、学习好资料欢迎下载如图,已知抛物线y12x2x4 交x轴的正半轴于点A,交y轴于点 B(1)求 A、B两点的坐标,并求直线AB的解析式;(2)设 P(x,y)(x0)是直线yx上的一点,Q是 OP的中点(O是原点),以 PQ为对角线作正方形PEQF,若正方形PEQF与直线 AB有公共点,求x的取值范围;(3)在(2)的条件下,记正方形PEQF 与 OAB公共部分的面积为S,求S关于x的函数解析式,并探究S的最大值24如图 1,已知梯形OABC,抛物线分别过点O(0,0)、A(2,0)、B(6,3)(1)直接写出抛物线的对称轴、解析式及顶点M 的坐标;(2)将图 1 中梯形 OABC的上下底边所

2、在的直线OA、CB以相同的速度同时向上平移,分别交抛物线于点O1、A1、C1、B1,得到如图2 的梯形 O1A1B1C1设梯形 O1A1B1C1的面积为 S,A1、B1的坐标分别为(x1,y1)、(x2,y2)用含 S的代数式表示2x1x,并求出当 S=36 时点 A1的坐标;(3)在图 1 中,设点 D 坐标为(1,3),动点 P从点 B出发,以每秒1 个单位长度的速度沿着线段 BC运动,动点 Q 从点 D 出发,以与点 P相同的速度沿着线段DM 运动P、Q 两点同时出发,当点Q 到达点 M 时,P、Q 两点同时停止运动设P、Q 两点的运动时间为t,是否存在某一时刻t,使得直线PQ、直线 A

3、B、x轴围成的三角形与直线 PQ、直线 AB、抛物线的对称轴围成的三角形相似?若存在,请求出t 的值;若不存在,请说明理由C B A O y x 图 1 D M 图 2 O1A1O y x B1C1D M 精品资料-欢迎下载-欢迎下载 名师归纳-第 1 页,共 36 页 -学习好资料欢迎下载26.(12 分)如图,已知抛物线cbxxy221与y轴相交于C,与x轴相交于A、B,点A的坐标为(2,0),点 C的坐标为(0,-1).(1)求抛物线的解析式;(2)点 E是线段 AC上一动点,过点E作 DE x 轴于点 D,连结 DC,当 DCE的面积最大时,求点D的坐标;(3)在直线BC上是否存在一点

4、P,使 ACP为等腰三角形,若存在,求点P 的坐标,若不存在,说明理由.ABCEDxyo题图26ABCxyo备用图精品资料-欢迎下载-欢迎下载 名师归纳-第 2 页,共 36 页 -文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M

5、3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4

6、ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M

7、3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4

8、ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M

9、3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4

10、ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3学习好资料欢迎下载(本小题满分14 分)已知抛物线yax2bxc经过A(4,3)、B(2,0)两点,当x=3和x=3 时,这条抛物线上对应点的纵坐标相等经过点C(0,2)的直线l

11、与 x轴平行,O为坐标原点(1)求直线AB和这条抛物线的解析式;(2)以A为圆心,AO为半径的圆记为A,判断直线l与A的位置关系,并说明理由;(3)设直线AB上的点D的横坐标为 1,P(m,n)是抛物线yax2bxc上的动点,当PDO的周长最小时,求四边形CODP的面积1 y x O(第 28 题)1 2 3 4 2 4 3 3 1 2 3 4 4 1 2 精品资料-欢迎下载-欢迎下载 名师归纳-第 3 页,共 36 页 -文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:C

12、G5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4

13、N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:C

14、G5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4

15、N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:C

16、G5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4

17、N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:C

18、G5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3学习好资料欢迎下载24(本题满分 l2 分)将直角边长为6 的等腰RtAOC放在如图所示的平面直角坐标系中,点O为坐标原点,点C、A分别在x、y轴的正半轴上,一条抛物线经过点A、C及点B(3,0)(1)求该抛物线的解析式;(2)若点P是线段BC上一动点,过点P作AB的平行线交AC于点E,连接AP,当APE的面积最大时,求点P的坐标;(3)在第一象限内的该抛物线上是否存在点G,使AGC的面积与(2)中APE的最大面积相等?若存在,请求出点G的坐标;若不存在,请说明理由yxCBOA24 题图精品资料-欢迎下载-欢迎下载 名师归纳-

19、第 4 页,共 36 页 -文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:C

20、G5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4

21、N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:C

22、G5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4

23、N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:C

24、G5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4

25、N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3学习好资料欢迎下载24(本小题满分14 分)如图,在平面直角坐标系中放置一矩形ABCO,其顶点为A(0,1)、B(33,1)、C(33,0)、O(0,0)将此矩形沿着过E(3,1)、F(433,0)的直线EF向右下方翻折,B、C的对应点分别为B、C(1)求折痕所在直线EF的解析式;(2)一抛物线经过B、E、B三点,求此二次函数解析

26、式;(3)能否在直线EF上求一点P,使得PBC周长最小?如能,求出点P的坐标;若不能,说明理由解:精品资料-欢迎下载-欢迎下载 名师归纳-第 5 页,共 36 页 -文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3

27、HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G

28、8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3

29、HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G

30、8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3

31、HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G

32、8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3学习好资料欢迎下载xyO x1 第 25 题A C B 25(本题满分12 分)如图,已知抛物线yax2bxc(a 0)的对称轴为x1,且抛物线经过A(1,0)、B(0,3)两点,与x轴交于另一

33、点B(1)求这条抛物线所对应的函数关系式;(2)在抛物线的对称轴x1 上求一点M,使点M到点A的距离与到点C的距离之和最小,并求出此时点M的坐标;(3)设点P为抛物线的对称轴x1 上的一动点,求使PCB90的点P的坐标精品资料-欢迎下载-欢迎下载 名师归纳-第 6 页,共 36 页 -文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G

34、8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3

35、HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G

36、8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3

37、HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G

38、8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3

39、HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3学习好资料欢迎下载ENMDCBAOyx26如图,RtABO的两直角边OA、

40、OB分别在x轴的负半轴和y轴的正半轴上,O为坐标原点,A、B两点的坐标分别为(3,0)、(0,4),抛物线223yxbxc经过B点,且顶点在直线52x上(1)求抛物线对应的函数关系式;(2)若DCE是由ABO沿x轴向右平移得到的,当四边形ABCD是菱形时,试判断点C和点D是否在该抛物线上,并说明理由;(3)若M点是CD所在直线下方该抛物线上的一个动点,过点M作MN平行于y轴交CD于点N设点M的横坐标为t,MN的长度为l求l与t之间的函数关系式,并求l取最大值时,点M的坐标精品资料-欢迎下载-欢迎下载 名师归纳-第 7 页,共 36 页 -文档编码:CG5M3O7O6U3 HK5B8C7F4N4

41、 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5

42、M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4

43、 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5

44、M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4

45、 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5

46、M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4

47、 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3学习好资料欢迎下载24.(本小题满分12 分)在平面直角坐标系xOy中,抛物线的解析式是y=241x+1,点C的坐标为(4,0),平行四边形OABC的顶点A,B在抛物线上,AB与 y 轴交于点M,已知点Q(x,y)在抛物线上,点P(t,0)在x轴上.(1)写出点M的坐标;(2)当四边形CMQP是以MQ,PC为腰的梯形时.求t关于x的函数解析式和自变量x的取值范围;当梯形CMQP的两底的长度之比为1:2 时,求t的

48、值.(第 24 题)精品资料-欢迎下载-欢迎下载 名师归纳-第 8 页,共 36 页 -文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3

49、 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9

50、G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3 HK5B8C7F4N4 ZO8X2J9G8S3文档编码:CG5M3O7O6U3

展开阅读全文
相关资源
相关搜索

当前位置:首页 > 教育专区 > 高考资料

本站为文档C TO C交易模式,本站只提供存储空间、用户上传的文档直接被用户下载,本站只是中间服务平台,本站所有文档下载所得的收益归上传人(含作者)所有。本站仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。若文档所含内容侵犯了您的版权或隐私,请立即通知淘文阁网,我们立即给予删除!客服QQ:136780468 微信:18945177775 电话:18904686070

工信部备案号:黑ICP备15003705号© 2020-2023 www.taowenge.com 淘文阁