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一般式的斜率怎么求
更新时间： 2021-02-23 00:31:28  

一般式的斜率求法如下。

1、直线方程为一般式：Ax+By+C=0 斜率为-A/B

2、直线方程为斜截式：y=kx+b 斜率为k

3、直线方程为点斜式：y-y1=k(x-x1) 斜率为k.

4、直线方程为截距式：x/a+y/b=1 斜率为-b/a

5、直线方程为两点式：(y-y1)/(x-x1)=(y2-y1)/(x2-x1) 斜率为(y2-y1)/(x2-x1)

6、直线方程为参数式：

x=x0+lt

y=y0+mt 斜率k=m/l

关键词： 一般 斜率 怎么

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