如图,一次函数y = kx+1与反比例函数y =
的图象交于点P,点P在第一象限,PA⊥x轴于点A,PB⊥y轴于点B,一次函数的图象分别交x轴、y轴于点C、D,且S△PBD = 4S△DOC , AO =2.
(1)求点D的坐标;
(2)求反比例函数与一次函数的解析式;
(3)根据图象写出当x>0时,反比例函数的值小于一次函数的值的x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7626c207a4dc82d4d59cb520c91e49.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/12/45e031a8-85d8-411e-8067-cfb3064854bf.png?resizew=170)
(1)求点D的坐标;
(2)求反比例函数与一次函数的解析式;
(3)根据图象写出当x>0时,反比例函数的值小于一次函数的值的x的取值范围.
更新时间:2020-09-17 09:52:53
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【推荐1】如图,已知一次函数
的图像与反比例函数
的图像交于点
,
两点,与
轴相交于点
.
(1)求一次函数与反比例函数的解析式;
(2)若点
与点
关于
轴对称,求
的面积;
(3)根据图像直接写出不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05621b18b7ffc991d9f30380e2e08fea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4d11a4388c3aa2149aaed8a2559df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c043c75f9cfe31050f8622e59ee6d237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/17/936fde4a-f4b9-4c0b-95fb-06cdd0d19044.png?resizew=135)
(1)求一次函数与反比例函数的解析式;
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
(3)根据图像直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ded11dd89d77ed408359e5a3d9fd52c.png)
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【推荐2】如图,直线
与反比例函数
的图象交于点A,B,与y轴交于点C,其中点A的坐标为(-2,4),点B的横坐标为-4.
(1)试确定反比例函数的关系式
(2)求ΔAOC的面积
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75cb90e72041e9139d4964f529ae1728.png)
(1)试确定反比例函数的关系式
(2)求ΔAOC的面积
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/3/6dcca168-d517-4d4e-bff3-560225294d77.jpg?resizew=132)
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【推荐1】如图,正方形
中,点G在对角线
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于点E,
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【推荐2】如图
,
中,
是
的中点,将
沿
折叠后得到
,且 点
在□
内部.将
延长交
于点
.
(1)猜想并填空:
________
(填“
”、“
”、“
”);
(2)请证明你的猜想;
(3)如图
,当
,设
,
,
,证明:
.
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(1)猜想并填空:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
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(2)请证明你的猜想;
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【推荐1】在物理学中我们学过光的反射定律,小军想利用光的反射定律测量一棵树的高度,但因树旁有一个池塘,不能测量镜子与树之间的距离,于是他利用镜子进行两次测量,如图,第一次他把镜子放在点
处,走到点
处正好在镜中看到树尖
的像;第二次他把镜子放在点
处,走到点
处也正好在镜中看到树尖
的像.已知
,
,
,点
、
、
、
、
在同一条直线上,小军的眼睛到地面的距离为1.5米(即
米),量得
米,
米,
米,求这棵树的高度
.(镜子的大小和厚度忽略不计)
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【推荐2】如图,点D、E分别在△ABC的边AC、AB上,延长DE、CB交于点F,且AE•AB=AD•AC.
(1)求证:∠FEB=∠C;
(2)连接AF,若
,求证:EF•AB=AC•FB.
(1)求证:∠FEB=∠C;
(2)连接AF,若
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