20-21高一上·浙江·阶段练习
解题方法
1 . 已知二次函数f(x)满足
,且f(0)=4,则函数f(x)的解析式为________________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa25896eea51861207d4c1ee194f37b9.png)
您最近一年使用:0次
19-20高一·全国·课后作业
解题方法
2 . (1)已知
,
为一次函数,且
随
值增大而增大.若
,求
的解析式;
(2)已知
,求
,
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318a16f1950d06e5500c76d8f81a507f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491684a0b501f04141a750202ab3bc68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fbdfe67b409230d7d918d4b0a76917.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe17821ea81c6fec60bd5273901bd50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bb6da917059d222ce74adae88054fbc.png)
您最近一年使用:0次
19-20高一·全国·课后作业
3 . 设
表示不超过
的最大整数,若
,
.
(1)求
;
(2)写出差函数
在
上的解析式并作出其图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d65fc2b5f198801643af05d8c916045b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3c2be7482719651bcf491949681e05.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41e4032b46f41f773416c5e20b2809d.png)
(2)写出差函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
您最近一年使用:0次
19-20高一·全国·课后作业
解题方法
4 . 已知函数
,且
,
.
(I)求
的函数解析式;
(II)求证:
在
上为增函数;
(III)求函数
在区间
的值域
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5580bdaab30c1b6001b95ecf8bdba90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b122bc5f427c0c5fb3ee495b38a6e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7743bbf4f8c56ba57f4386fa1cd70451.png)
(I)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(II)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7207cebe3ea9573647aee3b6f029fb72.png)
(III)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0530e48690edc3429da2d23c25151296.png)
您最近一年使用:0次
19-20高一·全国·课后作业
解题方法
5 . (1)已知
,求
的解析式.
(2)已知
是二次函数,且满足
,
,求
的解析式;
(3)已知函数
对于任意的x都有
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab243207160c36bb807bdd93be82456b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61c9a7ed0961f8977a21dab37aab396.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c811aac7882ab358d59ee0ee49a029d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef5ab1605d6930808770a5bf2386980.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
19-20高一·全国·课后作业
解题方法
6 . 已知
,
是
的正比例函数,
是
的反比例函数,且
,求
的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71607511fdd4faa9e832345ceb2a817d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda6f99e4d637e61fc2f706e58c156be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
您最近一年使用:0次
19-20高一·全国·课后作业
解题方法
7 . 已知函数
为一次函数,且一次项系数大于零,若
求
的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f27180370c90fdf5c62c78267f99e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36675ac104bcba67380d23387b45715d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
您最近一年使用:0次