题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065834-62076.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065834-86710.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065835-30005.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065835-37124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065835-65007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065835-25168.png)
小题1:当函数
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065835-72581.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065835-86982.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065836-53147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065836-37821.png)
小题2:在平面直角坐标系中,一次函数
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065836-48194.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065836-43537.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065836-84043.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065837-60344.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065837-23980.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065837-67239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065837-23980.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065836-84043.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065837-67239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065837-21701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065836-48194.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065837-21701.png)
答案
小题1:由题意可知
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065838-83703.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065838-22309.png)
小题2:A(
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065838-18588.png)
∵点C与点B 关于x轴对称,
∴C(0,-3), …………………………………… 5分
由题意可得
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065838-11799.png)
解得
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065838-72967.png)
∵2+(-2)=0,3+(-3)=0,
∴函数y=2x+3与y=kx+b是对称函数. …………………………………… 8分
解析
(2)求出
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065836-84043.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065837-67239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065836-84043.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065837-67239.png)
核心考点
试题【若一次函数(是常数)与(是常数),满足且,则称这两函数是对称函数小题1:当函数与是对称函数,求和的值;小题2:在平面直角坐标系中,一次函数图象与轴交于点、与轴交】;主要考察你对二次函数定义等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065824-11079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065824-28590.png)
小题1:当
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065824-67021.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065824-85325.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065825-57329.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065825-20080.png)
小题2:以抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065824-11079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065825-52850.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065825-75196.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065825-29712.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065825-78131.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065825-31625.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065825-20080.png)
小题3:若抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065824-11079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065825-57329.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065825-20080.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065816-90050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065816-33907.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065817-83977.png)
A.2008 | B.2009 | C.2011 | D.2012 |
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065812-70843.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065812-90322.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065805-50873.png)
![]() | … | ![]() | ![]() | 0 | 1 | 2 | … |
![]() | … | ![]() | ![]() | ![]() | ![]() | ![]() | … |
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065805-50873.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065806-21562.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065806-32873.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065807-60864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019065758-16650.png)
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