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斜率公式
更新时间: 2021-06-04 16:19:47  

1、斜率公式为:k=-a/b。

2、求斜率步骤为:

对于直线方程x-2y+3=0

(1)把y写在等号左边,x和常数写在右边:2y=x+3。

(2)把y的系数化为1:y=0.5x+1.5。

(3)此时x的系数即为斜率:k=0.5。

-b/c是该直线在y坐标轴上交点的纵坐标;-c/a 是直线在x坐标上交点的横坐标。

关键词: 斜率 公式

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