1 . 已知
.
(1)求f[f(-1)]的值;(2)若f(x0)=9,求实数x0的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8cdf4cf04f07233388e85e6fb2e8e0b.png)
(1)求f[f(-1)]的值;(2)若f(x0)=9,求实数x0的值.
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解题方法
2 . 设函数
若
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/2/9764fea0-addf-4842-b5b6-a16ccec37311.png?resizew=321)
(1)求函数
的解析式;
(2)画出函数
的图象,并指出函数的定义域、值域、单调区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271d043b44e03bd9cffabd1e81b61c38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/443e10e57d010ed3877b68351d56d2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a22a5fa62ba8d49ec14d0b5e9b8dabf7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/2/9764fea0-addf-4842-b5b6-a16ccec37311.png?resizew=321)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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3 . 如图所示,定义域为
上的函数
是由一条射线及抛物线的一部分组成.利用该图提供的信息解决下面几个问题.
![](https://img.xkw.com/dksih/QBM/2017/11/14/1817285750546432/1818552665243648/STEM/428dc25527904650b6033acf7b9b588a.png?resizew=166)
(1)求
的解析式;
(2)若
关于的方程
有三个不同解,求
的取值范围;
(3)若
,求
的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f545a87bd651b061768225748b78c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://img.xkw.com/dksih/QBM/2017/11/14/1817285750546432/1818552665243648/STEM/428dc25527904650b6033acf7b9b588a.png?resizew=166)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c342d52fc26cc550a45b80756903bee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ebeb4e3c8892c25f349a368b05b992d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2017-11-16更新
|
2067次组卷
|
6卷引用:河南省洛阳市2017-2018学年高一上学期期中考试数学试题
名校
解题方法
4 . 已知函数
,
(1)若
,求
的值;
(2)在平面直角坐标系中,作出函数
的草图.(需标注函数图像与坐标轴交点处所表示的实数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce7def019f31f573e49dd2b4bee14a1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8b2055b9b62e846b03b3d06a4ce2a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)在平面直角坐标系中,作出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
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5 . 已知
,若
,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ddc24b25f64dbcaf71fa4448e1cc2f6.png)
![](https://img.xkw.com/dksih/QBM/2015/11/19/1572298802077696/1572298808221696/STEM/2c3c2e5346cb45a484eccb7bcd746780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2016-12-03更新
|
320次组卷
|
4卷引用:2015-2016学年吉林省长春市十一中高一上学期期初考试理科数学试卷
6 . 为节约用水,某市打算出台一项水费收费措施,其中规定:每月每户用水量不超过7吨时,每吨水费收基本价3元;若超过7吨而不超过11吨时,超过部分水费加收100%;若超过11吨而不超过15吨时,超过部分的水费加收200%,现在设某户本月实际用水量为
吨,应交水费为
元.
(1)试求出函数
的解析式;
(2)如果一户人家本月应交水费为39元,那么该户本月的实际用水量是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cda7fdeb215e830d2faf8ba645e051c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)试求出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)如果一户人家本月应交水费为39元,那么该户本月的实际用水量是多少?
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2014高三·全国·专题练习
名校
7 . 已知实数a≠0,函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3c988d875438535244ee2b092a779b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ba1087723bf3d10ba14472a65067e9b.png)
(1)若
,求
,
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3c988d875438535244ee2b092a779b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ba1087723bf3d10ba14472a65067e9b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b21a52ba554a8f2b89ab6f1e3d012.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c484d89a9e53e43b94ad1efa11c8826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72056d4379fc59a46600ddb407a0c307.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8244c822c14bd88f0d191b736631aae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-03更新
|
1215次组卷
|
6卷引用:2014届高考数学总复习考点引领+技巧点拨第二章第1课时练习卷
(已下线)2014届高考数学总复习考点引领+技巧点拨第二章第1课时练习卷2014-2015学年河北省石家庄市第二实验中学高一9月月考数学试卷函数的表示法习题课浙江省杭州市长征中学2019-2020学年高一上学期期中数学试题(已下线)【新东方】杭州高一数学试卷226江西省赣州市赣县三中2019-2020学年高一上学期10月月考数学试题
14-15高三上·江苏苏州·期中
名校
8 . 已知函数
,
,
.
(1)
,
,求
值域;
(2)
,解关于
的不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c8da34730145c2c98b0c7be989f830.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4318935bf9a062a0a1f45342e7501867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65ee77041438f3ef53d4232cd9d737e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b33263f1e4d99dc78eadbd7244e7ed.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64e4ea0af44a38eb0c09dc8170c8dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fde11c42c1af9bf367c85b9baf468254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c8da34730145c2c98b0c7be989f830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
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11-12高二上·湖北黄冈·期中
9 . 如右图是某种算法的程序,回答下面的问题:
(1)写出输出值y关于输入值x的函数关系式f (x).
(2)当输出的y值小于
时,求输入的x的取值范围.
![](https://img.xkw.com/dksih/QBM/2011/11/17/1570353490427904/1570353495826432/STEM/473d6debe340499c8c3930e53d2103a7.png?resizew=133)
(1)写出输出值y关于输入值x的函数关系式f (x).
(2)当输出的y值小于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://img.xkw.com/dksih/QBM/2011/11/17/1570353490427904/1570353495826432/STEM/473d6debe340499c8c3930e53d2103a7.png?resizew=133)
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10 . 已知
,
(1)求f(
),f [f (-
)]值;
(2)若f (x)=
,求x值;
![](https://img.xkw.com/dksih/QBM/2016/1/20/1572446699208704/1572446705188864/STEM/2e4d6b3a5a264bb8822e35b669ceba8c.png?resizew=216)
(3)作出该函数简图(画在右图坐标系内);
(4)求函数的单调增区间与值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7024a82ab6f27d3ba682ce882de75af1.png)
(1)求f(
![](https://img.xkw.com/dksih/QBM/2016/1/20/1572446699208704/1572446705188864/STEM/5924683a797b4963b8a842a6f1b74bcf.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/1/20/1572446699208704/1572446705188864/STEM/5c4095aa33794c4ca267514d51c06a0e.png?resizew=16)
(2)若f (x)=
![](https://img.xkw.com/dksih/QBM/2016/1/20/1572446699208704/1572446705188864/STEM/44ab13d22d0949d1aaf819ea420da4e7.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/1/20/1572446699208704/1572446705188864/STEM/2e4d6b3a5a264bb8822e35b669ceba8c.png?resizew=216)
(3)作出该函数简图(画在右图坐标系内);
(4)求函数的单调增区间与值域.
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