# What is the slope of the line perpendicular to # y=4/7x+13#?

##### 1 Answer

Jan 2, 2016

#### Explanation:

The word perpendicular mean that two lines intersect "cut" each other at a 90 degree angle.

Therefore both line have slopes that are **negative reciprocal to each other**

Negative meant- opposite in side

Reciprocal- "flip flop" aka invert the slope

From your question

We know the original slope if

Perpendicular slope is