# What is the slope of a line perpendicular to a line with a slope of #3#?

##### 1 Answer

Jul 11, 2018

#### Explanation:

If two lines are perpendicular then the product of their slopes is

This means one slope is the negative reciprocal of the other.

So if one slope is

One slope will be positive and one will be negative.

One will be steep and the other will be gentle.