# What is the slope of any line perpendicular to the line passing through #(-9,8)# and #(0,0)#?

##### 1 Answer

Jan 14, 2016

First, find the slope of the original line.

#### Explanation:

m =

m =

m =

The slope of a line perpendicular to that line would be the negative reciprocal. To find this, invert the numerator and the denominator and multiply by -1, which gives you m =

So, the slope of any line perpendicular to the line passing through (-9, 8) and (0,0) is