如图,平面直角坐标系中,函数y=k+2的图象过点A(3,0),将其图象向上平移2 个单位后与x轴交于点B,与y轴交于点C.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/6/55ae9402-b11d-4d0e-a26b-57d8a384a035.png?resizew=197)
(1)求图象经过点B和点C的一次函数解析式;
(2)求△OBC的面积
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/6/55ae9402-b11d-4d0e-a26b-57d8a384a035.png?resizew=197)
(1)求图象经过点B和点C的一次函数解析式;
(2)求△OBC的面积
更新时间:2022-07-13 15:03:12
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【推荐1】已知一次函数的图象与双曲线y1=-
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【推荐2】在平面直角坐标系中,已知直线经过点
,
.
(1)求直线
所对应的函数表达式;
(2)若点
在直线
上,求
的值;
(3)将直线
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轴交点的坐标.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1657d4cc1ba84a620ac9f0336a99df1.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df29c6cb461e225fad73fa17fce943b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)将直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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【推荐1】如图,直线
过点
且与
轴交于点
,直线
与直线
交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/ffb31d5e-5617-47c9-b3b4-a1f84d8a147d.png?resizew=228)
(1)求直线
的函数解析式;
(2)当
时,求
的取值范围;
(3)若直线
上存在点
,当
时,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51a109f8365293a6d3c149047d352f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b1af5d4b930f8989cf63d44768621e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c33700c3358cbbd8db376f9f0613b8.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/ffb31d5e-5617-47c9-b3b4-a1f84d8a147d.png?resizew=228)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a99fe0e33a037210d2f599c3dcee32e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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【推荐2】如图,已知抛物线
的对称轴为
,顶点为D,与x轴交于A、B两点,与y轴交于点C.
![](https://img.xkw.com/dksih/QBM/2021/4/9/2695973910020096/2696180297072640/STEM/9018f6ff-c805-40b8-8a90-343f3721829b.png)
(1)若点
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(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6037359d2727b05ee33db9e2c36226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d28beb06b224bddf676d3ceb34821bd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b84f458b202f6721765d55f2c2089cb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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【推荐1】已知一次函数y=kx+b的图象过A(1,1)和B(2,﹣1)
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(2)求直线y=kx+b与坐标轴围成的三角形的面积;
(3)将一次函数y=kx+b的图象沿y轴向下平移3个单位,则平移后的函数表达式为 ,再向右平移1个单位,则平移后的函数表达式为 .
(1)求一次函数y=kx+b的表达式;
(2)求直线y=kx+b与坐标轴围成的三角形的面积;
(3)将一次函数y=kx+b的图象沿y轴向下平移3个单位,则平移后的函数表达式为 ,再向右平移1个单位,则平移后的函数表达式为 .
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【推荐2】如图,在平面直角坐标系中,
是坐标原点.已知点
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/5/5b351810-2e9f-426d-ad27-4add8bc5e0a4.jpg?resizew=275)
(1)求直线
的函数解析式;
(2)已知直线
.
①当
时,若将直线
沿坐标轴经过一次平移后过点A,请你通过计算给出一种平移方案;
②若直线
与线段
、
能围成封闭的三角形区域,请直接写出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7089a4e568ed92b1230af589f4d47be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/5/5b351810-2e9f-426d-ad27-4add8bc5e0a4.jpg?resizew=275)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f19f6cf445e095c0696b318414ee66a1.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a2a34b4317deffa40ba34e269c2b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
②若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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