python/数学课程/【一次函数】一次函数恒过定点问题.md

![](http://dsideal.obs.cn-north-1.myhuaweicloud.com/HuangHai/BlogImages/2023/03/f26ace6c8007c315dfc663c105ed9810.png)

答案：$x=-2$时，此时$k$就无用了，$y=-2-1=-3$

$\therefore (-2,-3)$
'commit' 2025-08-30 18:35:01 +08:00			`![](http://dsideal.obs.cn-north-1.myhuaweicloud.com/HuangHai/BlogImages/2023/03/f26ace6c8007c315dfc663c105ed9810.png)`

			`答案：$x=-2$时，此时$k$就无用了，$y=-2-1=-3$`

			$\therefore (-2,-3)$