Explore how two parallel lines look like. Investigate the relationship between the slopes of the two lines by changing the slope of the[color=#ff00ff] pink line[/color] and see how the slope of the [color=#0000ff]blue line[/color] changes.[br][br]Explore how two perpendicular lines look like. Investigate the relationship between the slopes of the two lines by changing the slope of the [color=#ff00ff]pink line[/color] and see how the slope of the [color=#00ff00]green line[/color] changes.
1. How do you describe the two parallel lines?[br]2. How are the slopes of the two lines related?
1. How do you describe the two perpendicular lines?[br]2. How are the slopes of the two lines related?
If the slope of a line is 2. What is the slope of a line that is [br]a. parallel to it?[br]b. perpendicular to it?