题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124900-38927.gif)
答案
解析
核心考点
试题【已知抛物线C的顶点为坐标原点,焦点在x轴上,直线y=x与抛物线C交于A,B两点,若P(2,2)为AB的中点,则抛物线C的方程为________.】;主要考察你对直线的倾斜角与斜率等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124848-54171.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124848-29608.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124848-89523.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124849-78370.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124849-74591.png)
A. 6 B. 4 C. 3 D.2
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124841-83258.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124842-31760.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124842-35956.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124842-10552.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124842-97722.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124843-64775.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124843-76671.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124843-70720.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124837-87745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124837-44001.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124837-61702.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124837-56788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124838-64644.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124838-54540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124838-16804.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124838-30860.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124837-56788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124838-30860.png)
①点;②直线;③圆;④抛物线;⑤椭圆;⑥双曲线;⑦双曲线的一支.
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124824-54607.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124825-64492.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124825-35051.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124825-14077.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124825-57518.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124826-54524.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124826-30146.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124826-77038.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124827-88399.png)
(I) 求证:Δ
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124827-99469.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124828-74081.png)
(Ⅱ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124828-61966.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124828-55950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124828-28467.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124829-28074.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124818-42317.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124818-41310.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124818-76143.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124818-38553.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124818-83633.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124819-66543.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124819-54368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124818-76143.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124819-98590.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124819-24321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124818-83633.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124820-85411.png)
(I) 写出直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124819-54368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124819-24321.png)
(Ⅱ)试判定直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124819-54368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022124819-24321.png)
最新试题
- 1如图所示,相距为d的两条水平虚线L1、L2之间是方向水平向里的匀强磁场,磁感应强度为B,质量为m、电阻为R的正方形线圈a
- 2(本小题满分12分)已知各项都不相等的等差数列的前六项和为60,且,(1)求数列的通项公式;(2)若数列的前项和。
- 3元素周期表是20世纪科学技术发展的重要理论依据之一,是我们学习化学的重要工具.假设NH4+是“元素”NH4的阳离子,则“
- 4孔子提出“为政在人”,作为一种文化传统,人治观念已经沉淀到民族精神的血液,以其强大的惯性冲击并干扰着当前法治秩序的建构和
- 5你双脚站在水平地面上,如果想使你对地面的压强增大一倍可以______,这是因为______.
- 6中国化学会第28届学术年会(2012年4月13-16日 四川成都)的第一分会场的主题是“绿色化学”.“绿色化学”要求工业
- 7用数字0,1,2,3,4组成没有重复数字的五位数,其中数字1,2相邻.(Ⅰ)求这样的五位数的个数;(Ⅱ)求这样的五位偶数
- 8可逆反应:N2 (g)+3H2 (g)2NH3(g)正反应放热,下列说法错误的是A.使用催化剂可加快速率,提高生产效率B
- 9
- 101976年10月,________ _________代表中央政治局采取果断措施。一举粉碎江青反革命集团。
热门考点
- 1新文化运动中提倡民主的直接目的是 [ ]A.反对独裁专制B.反对迷信盲从 C.反对旧道德 D.反对旧文学
- 2如图,方格纸中每个小正方形的边长都是单位1。(1)平移已知直角三角形,使直角顶点与点重合,画出平移后的三角形;(2)将平
- 3当x=______时,分式x2-2x-3x-3的值为零;当x=______时,代数式3x2-6x的值等于12.
- 4如图1是某校三个年级学生人数分布扇形统计图,通过对全校学生暑期期间所读课外书情况的调查,制成如图2的学生读书情况条形统计
- 5关于光现象下列说法正确的是:[ ]A.大树在水中的倒影是由于光的折射造成的 B.池塘底看起来比实际的要浅,这是光
- 6平面直角坐标系内P点坐标为(,),则P点关于轴的对称点P′的坐标为( )A.(-,)B.(,-)C.(-,-)D.(,
- 7下列递变规律中,正确的是( )A.Na、Mg、Al、S的还原性依次增强B.O、S、Na、K的原子半径依次增大C.H2
- 8如图,在△ABC中,AD=DE,AB=BE,∠A=83°,则∠CED=_____
- 9某地白天的温度为3℃,夜间下降了5℃,则夜间的温度为( ).
- 10计算:=( )