各地中考压轴题二次函数.pdf

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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