# Parallel and perpendicular lines in linear functions - Linear Functions

### Parallel and perpendicular lines in linear functions

Parallel lines are lines with identical slope. In other words, these lines will never cross each other. Perpendicular lines will always pass through each other and form right angles at the interception. In this lesson, we will learn how to use information such as, points in lines and their slopes, to determine whether the lines are parallel, perpendicular or neither.