2022年上海各区中考数学精选压轴题 .pdf

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1、上海各区中考数学精选压轴题【001】如图，已知抛物线2(1)3 3ya x（a 0）经过点(2)A，0，抛物线的顶点为D，过O作射线OMAD过顶点D平行于x轴的直线交射线OM于点C，B在x轴正半轴上，连结BC（1）求该抛物线的解析式；（2）若动点P从点O出发，以每秒1 个长度单位的速度沿射线OM运动，设点P运动的时间为()t s问当t为何值时，四边形DAOP分别为平行四边形？直角梯形？等腰梯形？（3）若OCOB，动点P和动点Q分别从点O和点B同时出发，分别以每秒1 个长度单位和 2 个长度单位的速度沿OC和BO运动，当其中一个点停止运动时另一个点也随之停止运动设它们的运动的时间为t()s，连接

2、PQ，当t为何值时，四边形BCPQ的面积最小？并求出最小值及此时PQ的长x y M C D P Q O A B【002】如图 16，在 RtABC中，C=90，AC=3，AB=5点 P从点 C出发沿 CA以每秒 1 个单位长的速度向点A 匀速运动，到达点A 后立刻以原来的速度沿AC返回；点Q 从点 A 出发沿AB以每秒 1 个单位长的速度向点B 匀速运动伴随着P、Q 的运动，DE保持垂直平分PQ，且交 PQ于点 D，交折线QB-BC-CP于点 E点 P、Q 同时出发，当点Q 到达点 B 时停止运动，点P也随之停止设点P、Q 运动的时间是t 秒（t0）（1）当 t=2 时，AP=，点 Q 到 A

3、C的距离是；（2）在点 P从 C 向 A 运动的过程中，求APQ的面积 S与t 的函数关系式；（不必写出t 的取值范围）（3）在点 E从 B向 C运动的过程中，四边形QBED能否成为直角梯形？若能，求t 的值若不能，请说明理由；（4）当 DE经过点 C 时，请直接写出 t 的值A C B P Q E D 图 16 文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8

4、E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档

5、编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8

6、E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档

7、编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8

8、E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档

9、编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2【003】如图，在平面直角坐标系中，已知矩形

10、ABCD的三个顶点B（4，0）、C（8，0）、D（8，8）.抛物线 y=ax2+bx 过 A、C两点.(1)直接写出点A 的坐标，并求出抛物线的解析式；(2)动点 P从点 A 出发沿线段AB向终点 B运动，同时点Q 从点 C 出发，沿线段CD向终点 D 运动速度均为每秒1 个单位长度，运动时间为t 秒.过点 P作 PE AB交 AC于点 E，过点 E作 EF AD 于点 F，交抛物线于点G.当 t 为何值时，线段EG最长?连接 EQ在点 P、Q 运动的过程中，判断有几个时刻使得CEQ是等腰三角形?请直接写出相应的t 值。文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L

11、3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2

12、HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L

13、3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2

14、HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L

15、3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2

16、HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L

17、3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2【004】如图，已知直线128:33lyx与直线2:216lyx相交于点Cll12，、分别交x轴于AB、两点矩形DEFG的顶点DE、分别在直线12ll、上，顶点FG、都在x轴上，且点G与点B重合（1）求ABC的面积；（2）求矩形DEFG的边DE与EF的长；（3）若矩形DEFG从原点出发，沿x轴的反方向以每秒1 个单位长度的速度平移，设移动时间为(012)tt秒，矩形DEFG与ABC重叠部分的面积为S，求S关t的函数关系式，并写出相

18、应的t的取值范围A D B E O C F x y1l2l（G）（第 4 题）文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H

19、8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文

20、档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H

21、8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文

22、档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H

23、8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文

24、档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2【006】如图 13，二次函数)0(2pqpxxy的图象与x 轴交于 A、B 两点，与y 轴交于点 C（0，-1），ABC的面积为45。（1）求该二次函数的关系式；（2）过 y 轴上的一点M（0，m）作 y 轴的垂线，若该垂线与ABC的外接圆有公共点，求m 的取值范围；（3）在该二

25、次函数的图象上是否存在点D，使四边形 ABCD为直角梯形？若存在，求出点 D的坐标；若不存在，请说明理由。文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT

26、8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z

27、2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT

28、8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z

29、2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT

30、8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2文档编码:CT8T3A4H9V2 HA6H8E5G6Z2 ZT1L2L5L3C2