已知一次函数
的图象经过点A(2,-1).
(1)求k的值;
(2)在平面直角坐标系中画出这个函数的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bee4f5212727502b36fbfbc5590b85.png)
(1)求k的值;
(2)在平面直角坐标系中画出这个函数的图象.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/25/97ba7eb1-cb52-4128-b155-0cb94981eb02.png?resizew=281)
更新时间:2022-04-19 09:33:35
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【推荐1】如图,一次函数
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和点
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(2)若将一次函数
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(2)若将一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02ebce8b2a915356ed39f36c5bad2ebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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(3)在(2)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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【推荐2】已知
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(1)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)求当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba53065eb180a682305fddb95d14b62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(3)求当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de72a5190834f5dbe895596656c038b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解答题-作图题
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较易
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【推荐1】已知函数
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(1)在给出的平面直角坐标系中,请通过列表,描点,连线画出这个函数的图象;
(2)若这个函数的图象与x轴、y轴分别交于点A、B,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ea05a2396e436b4df62d6328dbeaddc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/49807907-49fd-40e6-b89a-862608380b61.png?resizew=200)
(1)在给出的平面直角坐标系中,请通过列表,描点,连线画出这个函数的图象;
(2)若这个函数的图象与x轴、y轴分别交于点A、B,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
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【推荐2】已知一次函数
与
的图象都经过
,且与y轴分别交于B,C两点.
(1)求
的值;
(2)在同一直角坐标系中画出一次函数
与
的图象;
(3)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c522eaec2d9452821a23ad1c85478b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a39287c65b4970aa72dddd54fe674b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f9a340286faf644ce62e8f342dfaadb.png)
(2)在同一直角坐标系中画出一次函数
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(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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