如图,平面直角坐标系
中,过点
的直线
与直线
:
相交于点
,直线
与
轴相交于点
.
![](https://img.xkw.com/dksih/QBM/2021/7/9/2760446744764416/2771791802990592/STEM/b5e0d027-fcac-481b-ac57-fdf63fdc3909.png)
(1)求直线
的函数表达式;
(2)连接
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2fa1f8529fd00606ae96ee3dce8546c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de869ae6b6dc5b79fcae3de540b30bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5355c223fd6df2ab53a5d9e979216f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/2021/7/9/2760446744764416/2771791802990592/STEM/b5e0d027-fcac-481b-ac57-fdf63fdc3909.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
更新时间:2021-07-25 12:47:46
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适中
(0.65)
【推荐1】已知一次函数
的图象与
轴交点的横坐标为4,且过点
.
![](https://img.xkw.com/dksih/QBM/2022/4/28/2967796683628544/2973064001601536/STEM/e2b4fd16-c435-401e-ba58-f1e87a23350c.png?resizew=238)
(1)求一次函数
的表达式;
(2)过点
作与
轴平行的直线,与一次函数函数
的图象交于点
,当线段
时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d501afbd7542f2f724b658edf39af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c4c2e858754479e1ee65cb4f2a99ab7.png)
![](https://img.xkw.com/dksih/QBM/2022/4/28/2967796683628544/2973064001601536/STEM/e2b4fd16-c435-401e-ba58-f1e87a23350c.png?resizew=238)
(1)求一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760bb4b1dbcd14bebd12c219520597f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3652b127f3aacc07c0a9e822262deda6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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【推荐2】小明从家里出发骑车沿一条公路上学,途中车坏了,他步行将车推到了顺路的维修店,然后借店里的电话打给爸爸,爸爸接到电话后立刻从家里开车沿同一条公路行驶,接上小明后送他到学校.图中的折线表示小明离维修店的距离y(百米)与小明离开家直至到校的时间x(分钟)之间的函数关系(通话、上下车等时间忽略不计),请你根据图像开始探究:
(1)求爸爸开车的速度(百米/分钟);
(2)求线段
所表示的函数的表达式;
(3)这次到校时间比一般骑行到校时间多用了6分钟,小明觉得,不如直接从维修店跑着去学校更快.若小明的背包跑步速度是步行速度的2倍,你认为他的想法正确么?说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/5/9ff637f4-cd3e-4f87-84d9-2b44631bd404.png?resizew=277)
(1)求爸爸开车的速度(百米/分钟);
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(3)这次到校时间比一般骑行到校时间多用了6分钟,小明觉得,不如直接从维修店跑着去学校更快.若小明的背包跑步速度是步行速度的2倍,你认为他的想法正确么?说明理由.
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名校
【推荐1】如图,A是反比例函数
图象上一点,过点A作
轴于点B,点C在x轴上,
的面积为2.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/7/e5f78399-84f1-4b37-bb1f-f4423aac3e21.png?resizew=180)
(1)求反比例函数的解析式;
(2)已知
,点
在该反比例函数的图象上,点Q是x轴上一动点,若
最小,求点Q的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ea84cba8ccd585ad1da1fd204bc3e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/7/e5f78399-84f1-4b37-bb1f-f4423aac3e21.png?resizew=180)
(1)求反比例函数的解析式;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882292451ed3fca6df1e925d12377f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d7ae927a0b7a41413ca63b6d36773a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f381f2cc783bca25cb6fb9bdcbd64bc.png)
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【推荐2】如图,在平面直角坐标系中,一次函数y= kx +b(k≠0)的图像分别交x轴、y轴于A、B两点,与反比例函数y=
(m≠0)的图像交于C、D两点.已知点C的坐标是(6,-1),D(n,3).
(1)求m的值和点D的坐标;
(2)求线段AB的长度;
(3)根据图像直接写出: 当x为何值时,一次函数的值大于反比例函数的值?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7626c207a4dc82d4d59cb520c91e49.png)
(1)求m的值和点D的坐标;
(2)求线段AB的长度;
(3)根据图像直接写出: 当x为何值时,一次函数的值大于反比例函数的值?
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/10/ab1ace03-e480-49df-8309-de50fe369fd1.png?resizew=288)
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解答题-问答题
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适中
(0.65)
【推荐1】过点
的直线l与正比例函数的图象交于点
、与x轴交于点C.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/8a0cd309-9f11-4a57-93c2-060dcd72fe43.png?resizew=200)
(1)求直线l、正比例函数的解析式和点C的坐标;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfaba0309c471a4246ca3254a3cdaf17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266504a4bd910b292c74765dc9772f62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/8a0cd309-9f11-4a57-93c2-060dcd72fe43.png?resizew=200)
(1)求直线l、正比例函数的解析式和点C的坐标;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
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解答题-问答题
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适中
(0.65)
【推荐2】已知直线
:
与直线
:
交于点
(2,4),直线
与
轴交于点
,直线
与
轴交于点
.
(1)求
,
的值;
(2)求当
为何值时,
,
;
(3)求△
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9d6f74fbb130ed8695bf273b048f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe23a081886ea0db414ee21917300fb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)求当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac67e9a909472ab852d38d2ec66a1e1.png)
(3)求△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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