# Slopes of Parallel and Perpendicular Lines

Draw a nonvertical line. Then create a line parallel to your line. Find the slope of each line.

What are your 2 slopes?

What do you notice about the 2 slopes?

Repeat the process with a new pair of lines.

What are your 2 slopes?

What do you notice about the 2 slopes?

Make a conjecture based on your findings.

Draw a nonvertical line. Then create a line perpendicular to your line. Find the slope of each line.

What are your 2 slopes?

What is the product of your 2 slopes?

Repeat the process with a new pair of lines

What are your 2 slopes?

What is the product of your 2 slopes?

Make a conjecture based on your findings.