# What is the slope of a line that is perpendicular to a slope of -4?

Jul 7, 2016

The perpendicular slope $m = \frac{1}{4}$
Given the original slope of $m = - 4$ or $m = - \frac{4}{1}$
We can take the inverse and the reciprocal which makes the perpendicular slope $m = \frac{1}{4}$