What are perpendicular lines

The video tutorial explains the differences between parallel and perpendicular lines. It begins with a review of parallel lines, highlighting their constant slopes and different Y intercepts. The focus then shifts to perpendicular lines, which intersect at 90 degrees and can have the same or different Y intercepts. The tutorial emphasizes that perpendicular lines have opposite reciprocal slopes, with one being positive and the other negative. The video concludes with a brief overview of how to find perpendicular lines given an equation and a point.

What are the main characteristics of parallel lines?

Explain why parallel lines do not intersect.

What is the angle at which perpendicular lines intersect?

How can two lines be perpendicular if they have the same Y intercept?

Describe the relationship between the slopes of perpendicular lines.