题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095855-35447.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095856-33563.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095856-16104.png)
解析
试题分析:当抛物线开口向上时,设抛物线方程为
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095856-13154.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095855-35447.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095856-69545.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095856-73778.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095857-12469.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095855-35447.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095857-82234.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095857-63203.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095856-33563.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095856-16104.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095845-91899.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095845-23167.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095845-85263.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095845-27555.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095846-45609.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095845-91899.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095846-83376.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095845-91899.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095846-83376.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095845-27555.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095846-63643.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095841-50387.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-27386.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-70611.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-71789.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-82950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-70611.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-82950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-93455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-82129.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-82505.png)
(1)求抛物线的方程;
(2)当直线
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-83564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-14736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-82250.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095831-22763.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095821-20140.png)
A.1 | B.2 | C.3 | D.4 |
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095815-19424.jpg)
A.18 | B.24 | C.36 | D.48 |
最新试题
- 1下图是人体胰腺组织局部结构模式图,请据图回答问题:(1)A液为______,B液为_______,C液为_______,
- 2【题文】有人将“分封制”称为“封建制”,是指古代帝王裂土封疆、封邦建国的制度,被封诸侯拥有自己的领地。按照上述定义,下列
- 3设函数f(x)=|-x2+2bx+c|,x∈[-1,1]的最大值为m.若m≥k对任意的b、c恒成立,则k的最大值是(
- 4Our bedroom has no full-length mirror. There is one at the c
- 5在同一平面直角坐标系中,函数y=-1x与函数y=x的图象交点个数是( )A.0个B.1个C.2个D.3个
- 62009年10月16日晚,第十一届全运会开幕式在山东济南隆重举行。回答1-2题:1、这次运动会上,______代表团以6
- 7已知命题“若x+y>0,则x>0且y>0”.这个命题与它的否命题应当存在( )A.原命题是真命题,否命题是假命题B.原
- 8筛管的作用是( )A.运输水和无机盐B.运输有机物和水C.运输有机物和无机物D.运输有机物
- 9在△ABC中,已知(a2+b2)sin(A-B)=(a2-b2)sin(A+B),则△ABC的形状( )A.等腰三角形B
- 10Mary couldn"t go to the cinema with us because she had to __
热门考点
- 1如右图所示,地球绕OO′轴自转,则下列正确的是( )A.A、B两点的角速度相等B.A、B两点线速度相等C.A、B两点的
- 2高铁酸钠(Na2FeO4)具有很强的氧化性,是一种比氯气更好的净水消毒剂。工业上可以通过次氯酸钠氧化法制备高铁酸钠,生产
- 3定义集合运算:A⊙B={z|z=xy(x+y),x∈A,y∈B},设集合A={0,1},B={2,3},则集合A⊙B的所
- 4(12分)当前,房地产行业过热的问题已引起党中央国务院的高度关注。中央强调:将解决房地产投资规模过大、房价上涨过快的问题
- 5二次函数y=-0.5x2-1的图象的开口方向______,对称轴是______,顶点坐标为______.
- 6一 It"s not just the government"s duty to protect the ______.
- 7下列各图案中不是轴对称图形的是( )A.B.C.D.
- 8阅读下面的材料,完成后面的题目。①子游问孝,子曰:“今之孝者,是谓能养。至于犬马,皆能有养;不敬,何以别乎?”(《论语·
- 9南极洲最丰富的自然资源是[ ]A.煤炭B.铁矿C.生物资源D.淡水资源
- 10西晋内迁的少数民族大多分布在 [ ]A.长江流域 B.黄河流域 C.淮河流域 D.黑龙江流域