类比一次函数和反比例函数的学习经验,某数学实验小组尝试探究“
的函数图像与性质”,进行了如下活动.
(1)【小组合作:讨论交流】
同学甲说:“我们可以从表达式分析,猜想图像位置.”
同学乙回应道:“是的,因为自变量
的取值范围是 ,所以图像与
轴不相交.”
同学丙补充说:“又因为函数值
大于0,所以图像一定在第 象限.”
……
(2)【独立操作:探究性质】
在平面直角坐标系中,画出
的图像.
①函数
的图像是两条曲线;
②该函数图像关于______________对称;
③图像的增减性是__________________;
④同学丁说:“将第二象限的曲线绕原点顺时针旋转
后,与第一象限的曲线重合.”请你判断同学丁的说法是否正确?若错误,举出反例;若正确,请说明理由.
(3)【拓展探究:综合应用】
直接写出不等式
的解集是____________________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c2e8697fef91db7c2696ecdf1299ba.png)
(1)【小组合作:讨论交流】
同学甲说:“我们可以从表达式分析,猜想图像位置.”
同学乙回应道:“是的,因为自变量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
同学丙补充说:“又因为函数值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
……
(2)【独立操作:探究性质】
在平面直角坐标系中,画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c2e8697fef91db7c2696ecdf1299ba.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c2e8697fef91db7c2696ecdf1299ba.png)
②该函数图像关于______________对称;
③图像的增减性是__________________;
④同学丁说:“将第二象限的曲线绕原点顺时针旋转
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
(3)【拓展探究:综合应用】
直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8a24d6bce23797bcf901110c458007.png)
更新时间:2023-07-04 08:34:04
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真题
【推荐1】已知甲,乙两地相距
,一辆出租车从甲地出发往返于甲乙两地,一辆货车沿同一条公路从乙地前往甲地,两车同时出发,货车途经服务区时,停下来装完货物后,发现此时与出租车相距
,货车继续出发
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与货车行驶时间
之间的函数图象,结合图象回答下列问题:
的值是__________;
(2)求货车装完货物后驶往甲地的过程中,距其出发地的距离
与行驶时间
之间的函数关系式;
(3)直接写出在出租车返回的行驶过程中,货车出发多长时间与出租车相距
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b91627ea51c5dd4592af6568307742.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89789143aab8238a733c7c06591ae735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af80a88860bcd4a2682ed6105afac188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f98020c762bb0bd7f24f82f927be8227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b11be6dd6af544407a1d7da7225a7a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求货车装完货物后驶往甲地的过程中,距其出发地的距离
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f98020c762bb0bd7f24f82f927be8227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b11be6dd6af544407a1d7da7225a7a4.png)
(3)直接写出在出租车返回的行驶过程中,货车出发多长时间与出租车相距
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/096d69156c53eebc5c52892bdfb9bc1f.png)
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【推荐2】某班“数学兴趣小组”对函数
的图象和性质进行了探究,探究过程如下,请补充完整
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/e6ac9aa7-0817-4cf3-bdbc-2e700e6367a5.png?resizew=190)
(1)自变量
的取值范围是全体实数,
与
的几组对应值列表如下:
其中,
____________.
(2)根据表中数据,在如图所示的平面直角坐标系中描点,并画出了函数图象的一部分,请画出该函数图象的另一部分.
(3)观察函数图象,写出1条函数的性质.
(4)进一步探究函数图象发现:
①函数图象与x轴有____________个交点,所以对应的方程
有_____________个实数根;
②方程
有____________个实数根.
③函数
的图象与
有至少有3个交点时,
的取值范围是_____________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d07194c1b4cba76a2f210a38262b3c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/e6ac9aa7-0817-4cf3-bdbc-2e700e6367a5.png?resizew=190)
(1)自变量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
… | 0 | 1 | 2 | 3 | … | ||||||
… | 3 | 0 | 0 | 3 | … |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
(2)根据表中数据,在如图所示的平面直角坐标系中描点,并画出了函数图象的一部分,请画出该函数图象的另一部分.
(3)观察函数图象,写出1条函数的性质.
(4)进一步探究函数图象发现:
①函数图象与x轴有____________个交点,所以对应的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c24f6390bc63fd77f9032154c381068.png)
②方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d48ceab692c6c4c6245ba54ff75b16d.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d07194c1b4cba76a2f210a38262b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46111e4d12c21798aa213c0d7804c2ac.png)
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【推荐1】有这样一个问题:探究函数
的图象与性质.小华根据学习函数的经验,对函数
的图象与性质进行了探究.下面是小华的探究过程,请补充完整:
(1)函数
的自变量x的取值范围是___________;
(2)下表是y与x的几组对应值.m的值为_______;
(3)如图,在平面直角坐标系xOy中,描出了以上表中各对对应值为坐标的点.根据描出的点,画出该函数的图象;
(4)结合函数的图象,写出该函数的一条性质:____________.
(5)结合函数图象估计
的解的个数为_______个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0e67d68b6ee2822f6e9eec0ae56b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0e67d68b6ee2822f6e9eec0ae56b37.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0e67d68b6ee2822f6e9eec0ae56b37.png)
(2)下表是y与x的几组对应值.m的值为_______;
x | -2 | -1 | 1 | 2 | 3 | 4 | … | ||||
y | 0 | m | 1 | … |
(4)结合函数的图象,写出该函数的一条性质:____________.
(5)结合函数图象估计
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d8044ecbd5384abaf4878ca287fb12.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/12/20a03f70-1bb6-44cb-ad2b-af3074600cb8.png?resizew=208)
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【推荐2】如图1,在矩形
中,
,
,圆弧
过点
和
延长线上的点
,圆心
在
上,
上有一个动点
,
,交直线
于点
.线段
的长
与
的长
以及
的长
之间的几组对应值如下表所示.
(1)将线段
的长度
作为自变量,在平面直角坐标系
中画出了函数
的图象,如图2所示.请在同一坐标系中画出函数
的图象.
![](https://img.xkw.com/dksih/QBM/2021/5/8/2716487252156416/2731522069700608/STEM/25d8b184-defa-4839-aed3-63b4bd0c68eb.png)
(2)结合函数图象填空:(结果精确到0.1)
线段
的长度的最大值约为______;
线段
的长度的最小值约为______;
圆弧
所在圆的半径约等于_______;
连结
,
面积的最大值约为_______.
(3)继续在同一坐标系中画出所需的函数图象,并结合图象直接写出:当以点
、
、
为顶点构成的三角形为等腰三角形时,线段
的长度的近似值.(结果精确到0.1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b35ed92397da56c7afbd6967597a9611.png)
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0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
0 | 1 | 2 | 2.9 | 3.9 | 4.7 | 5.3 | 5.5 | 4.8 | |
4.3 | 4.4 | 4.3 | 4.1 | 3.5 | 2.7 | 1.7 | 1.2 | 2.6 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3759708a9ad59fcc9e41b7cd781424d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1708010a6d19c01502014549c88f4fcc.png)
![](https://img.xkw.com/dksih/QBM/2021/5/8/2716487252156416/2731522069700608/STEM/25d8b184-defa-4839-aed3-63b4bd0c68eb.png)
(2)结合函数图象填空:(结果精确到0.1)
线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe1a6ce0b35896c8a1c687a4376e71f6.png)
圆弧
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f986c181183d8e7e45655e6c5b5d5b.png)
连结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
(3)继续在同一坐标系中画出所需的函数图象,并结合图象直接写出:当以点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
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【推荐3】小明在学习中遇到这样一个问题:
![](https://img.xkw.com/dksih/QBM/2021/5/20/2725305458712576/2742036710793216/STEM/34695772-da3b-43c8-a424-7b62e0f5e60f.png?resizew=146)
小明在解决此问题时,尝试结合学习函数的经验研究此问题,请将下面的探究过程补充完整:
(1)根据点
在半圆弧
上的不同位置,画出相应的图形,测量线段
、
、
的长度,得到下表的几组对应值.
操作中发现:
①当
时,上表中
的值是______.
②线段
的长度无需测量即可得到,请简要说明理由.
(2)将线段
的长度作为自变量
,
和
的长度都是
的函数,分别记为
和
,并在平面直角坐标系
中画出了函数
的图象,如图所示.请在同一坐标系中画出函数
的图象.
![](https://img.xkw.com/dksih/QBM/2021/5/20/2725305458712576/2742036710793216/STEM/a06c573d-40b0-4687-a854-fa44ce4853bd.png?resizew=205)
(3)继续在同一坐标系中画出所需的函数图象,并结合图象直接写出:当
为等腰三角形时,线段
长度的近似值.(结果保留一位小数)
如图,在![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![](https://img.xkw.com/dksih/QBM/2021/5/20/2725305458712576/2742036710793216/STEM/34695772-da3b-43c8-a424-7b62e0f5e60f.png?resizew=146)
小明在解决此问题时,尝试结合学习函数的经验研究此问题,请将下面的探究过程补充完整:
(1)根据点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![]() | 0 | 2.0 | 4.0 | 6.0 | 8.0 | a | 10 |
![]() | 4.5 | 6.2 | 7.7 | 8.9 | 9.8 | 10.0 | 8.9 |
![]() | 8.0 | 9.0 | 9.7 | 10.0 | 9.6 | 8.9 | 6.0 |
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640f058b479299659893cf524ddf6544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)将线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a69a04d681f4400acbfdebe236e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da1776928626f9ddd5502ced04675d16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da1776928626f9ddd5502ced04675d16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a69a04d681f4400acbfdebe236e75a.png)
![](https://img.xkw.com/dksih/QBM/2021/5/20/2725305458712576/2742036710793216/STEM/a06c573d-40b0-4687-a854-fa44ce4853bd.png?resizew=205)
(3)继续在同一坐标系中画出所需的函数图象,并结合图象直接写出:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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【推荐1】如图1,在
中,
,点D,E分别在边
上,
,连接
,过点C作
,垂足为H,直线
交直线
于F.
;
(2)将图1中的
绕点C逆时针旋转,其他条件不变,如图2,(1)的结论是否成立?如果成立,请证明:如果不成立,请说明理由;
(3)若
,将
绕点C逆时针旋转一周,当A,E,D三点共线时,直接写出
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90b40c2b0ab8e1cfe5112d428b4b829f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60c28deca7c39932213e82df56abb9bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1f94af7f35686f4a8a268392abc9ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eaffcd2070bfcb1955e2cab66c26c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97d8b9c22198b4aaef495b9a449cfb68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34c23e376ab222814e0029d2adb5a957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8182e8ed3ee96372ee39a77faea9b0d3.png)
(2)将图1中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd9db88749dc14a3232ba30ecade905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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【推荐2】综合与实践
如图1所示,正方形
绕正方形
的顶点B逆时针旋转
度(
),
与
交于点H.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/7/6fd304ff-1ef4-4474-8eb2-d236b0733f05.png?resizew=390)
【初步感知】如图1,当
时,则
______度;
【探究发现】如图2,连接
、
、
,判断
与
的数量关系,并说明理由;
【应用拓展】当G,F,D三点共线时,若正方形
的边长为
,
,则正方形
的边长为______.
如图1所示,正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc7ee0ef8945ba1b90e59aed7cab889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/708d48b595c17d4dccf9b4086d7e664e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/7/6fd304ff-1ef4-4474-8eb2-d236b0733f05.png?resizew=390)
【初步感知】如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c96cb3ac8290e09c55d4eb336a8608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7157ea44f7e0bad3d764285bb66cb3a2.png)
【探究发现】如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
【应用拓展】当G,F,D三点共线时,若正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b91d650c2fc1a741fabdb333b09aeb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1394fc01d91ffe8e6826cab0c933be3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc7ee0ef8945ba1b90e59aed7cab889.png)
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【推荐1】如图,在矩形
中,
,
,点
从点A出发,沿折线
运动,当它到达点
时停止运动.
为边
上一动点,
为射线
上一动点,
的长度为点
运动路程的一半且
的面积为2,设点
的运动路程为
,
的面积记为
,
的长为
.
(1)写出
,
与
的函数表达式,并注明自变量
的取值范围;
(2)完成下表并在同一直角坐标系中通过描点分别作出
,
的函数图象;
(3)写出函数
的一条性质;
(4)根据图象直接写出不等式
成立时
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0cc6293cfedec30b124ece908c4c438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4e3c92be4b3f494e7d03c67819632c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147de24f071e316b68fd2e78e3c84545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/23/e23c19bd-85d0-49c0-9343-a55065a9356f.png?resizew=178)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)完成下表并在同一直角坐标系中通过描点分别作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
… | 1 | 2 | 3 | 4 | 5 | … | |
… | 4 | 3 | 1 | … | |||
… | 8 | 4 | 1.6 | … |
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/23/4da14ff5-8819-47c8-bd43-aee8b13cdee3.png?resizew=207)
(3)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(4)根据图象直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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【推荐2】如图反比例函数
的图象经过点
、点P是一次函数
的图象与该反比例函数图象的一个公共点.
(1)求反比例函数的解析式;
(2)当点P的纵坐标为1时,
①求
的面积:
②方程
的解为______;当x满足______
:
(3)对于一次函数
.当y随x的增大而增大时,则点P横坐标a的取值范围为______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ab01d0fcfb4d411a66efe170dda736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1af75a82044b58c61c4b0f6dbc67c99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf4ce079931585022720c258e84f5db.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/24/c0324b25-558c-4662-9990-efdfa8892b1a.png?resizew=179)
(1)求反比例函数的解析式;
(2)当点P的纵坐标为1时,
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1715eb5bb98c2f856c8979b04e1125c.png)
②方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14361d3304d7557b24ba3ff13731d06f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
(3)对于一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36236bd127cccd4250dc543a7f388270.png)
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【推荐3】对于两个不同的函数,通过加法运算可以得到一个新函数,我们把这个新函数称为两个函数的“和函数”.例如:对于函数
和
,则函数
,
的“和函数”
.
(1)已知函数
和
,这两个函数的“和函数”记为
.
①写出
的表达式,并求出当x取何值时,
的值为
;
②函数
,
的图象如图①所示,则
的大致图象是______.
A.
B.
C.
D.
(2)已知函数
和
,这两个函数的“和函数”记为
.
①下列关于“和函数”
的性质,正确的有______;(填写所有正确的选项)
A.
的图象与x轴没有公共点
B.
的图象关于原点对称
C.在每一个象限内,
随x的值增大而减小
D.当
时,随着x的值增大,
的图像越来越接近
的图象
②探究函数
与一次函数
(
为常数,且
图象的公共点的个数及对应的k的取值范围,直接写出结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14ff206d48c26c836ddeecebb83f8b74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1561781f38b03f4203a45fad14f36b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14bb7a86cd815df0b4e31770a12f68cb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/12/ce3fe449-0158-4988-8979-b38932f570cd.png?resizew=145)
(1)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f590ccda2e6bff92dc38d7236a0d4d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9847b6bfdb1043425f70b9df143c379d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9314bd1d7a6e070f4f2428f9a321804e.png)
①写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9314bd1d7a6e070f4f2428f9a321804e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9314bd1d7a6e070f4f2428f9a321804e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9314bd1d7a6e070f4f2428f9a321804e.png)
A.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/12/0f7f4087-1477-4b71-8144-afbd21b2b01d.png?resizew=135)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/12/be2caad0-e534-4404-8a19-eaa7cd150085.png?resizew=135)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/12/ba59c5a5-5264-46cd-a80e-4c9eeb6c339a.png?resizew=135)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/12/118cb8b3-483e-44f0-8771-d1e9937ac9a9.png?resizew=135)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd039aac69a677183bacf296eacdf0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d274f3184373a4a8716a0aabb00110f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9076e49b40d78ba58c352d7c8ae0efec.png)
①下列关于“和函数”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9076e49b40d78ba58c352d7c8ae0efec.png)
A.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9076e49b40d78ba58c352d7c8ae0efec.png)
B.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9076e49b40d78ba58c352d7c8ae0efec.png)
C.在每一个象限内,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9076e49b40d78ba58c352d7c8ae0efec.png)
D.当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9076e49b40d78ba58c352d7c8ae0efec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd039aac69a677183bacf296eacdf0a.png)
②探究函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0218391757871723fa717351f57b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/023ab3a7eb0f59993c7608576e47c0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103b6ff65be79b98e05c368ddcae533c.png)
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