已知
是正比例函数,且当
时,
.
(1)求
与
的函数关系式;
(2)当
时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de72a5190834f5dbe895596656c038b3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c98a7f3a8bf384b1dfc1d34aebd46d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
更新时间:2023-09-29 21:42:14
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解答题-问答题
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较易
(0.85)
【推荐1】已知
,
与
成正比,
与x成正比.当
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;当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28d4f56e2fb18d89e654c65c52d8254.png)
(1)求y与x的函数关系式;
(2)当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/845a73eeb5503d7b95dafee8dd0fece8.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28d4f56e2fb18d89e654c65c52d8254.png)
(1)求y与x的函数关系式;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf2917e77945b30da7be9b48b0b317a.png)
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解答题-作图题
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名校
【推荐2】已知函数满足 y﹣8 与 x+3 成正比例,且该函数图像过点(6,﹣4),与 x 轴交于 A,与 y 轴交于点 B;
(1)求出该函数的表达式;
(2)求点 A,B 的坐标并在如图的坐标系中画出该函数的图象;
(3)若点(m,﹣m+2)在此图象上,求 m 的值.
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(2)求点 A,B 的坐标并在如图的坐标系中画出该函数的图象;
(3)若点(m,﹣m+2)在此图象上,求 m 的值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/25f80316-de07-4627-b1e2-6b3a46a80d5d.jpg?resizew=310)
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