如图,点A在双曲线
(k<0)上,点B在x轴正半轴上,直线AB交y轴于点C,若
,△AOB的面积为15,则k的值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d710d8d0315842df73d288d3fdf8e3f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/d6a96ae3-0cce-4f34-8dc4-3d0ca226b3e1.png?resizew=188)
更新时间:2022-04-30 09:43:42
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