# What is the slope of any line perpendicular to the line passing through #(1,-2)# and #(-8,1)#?

##### 1 Answer

Jan 14, 2016

**The slope of the line is 3.**

#### Explanation:

The slope of the line passing through (1,-2) and (-8,1) is =

So the slope of the perpendicular line is **product of their slopes will be equal to -1**