DIRECTIONS:[br]Today we will be learning about properties of parallel and perpendicular lines: [br][br]1) Explore the applet below. Use the slider tools to change the slopes an y-intercepts of each line.[br][br]2) Using the slider tools, create a set of parallel lines on the coordinate plane. When lines are parallel, it will say "Parallel" on the screen.
Write any observations you may have on the way parallel lines look.
Parallel lines never touch.
Create a general rule based on the equations of parallel lines.
Parallel lines have the same slope but different y-intercepts.
DIRECTIONS:[br]1) Using the slider tools, create a set of perpendicular lines on the coordinate plane. When lines are perpendicular, it will say "Perpendicular" on the screen.
Write any observations you may have on the way perpendicular lines look.
Perpendicular lines cross at a 90 degree angle. Form an x or t shape.
Create a general rule based on the equations of perpendicular lines.
Perpendicular lines have slopes that are the opposite signs and the reciprocals of each other.
Create a perpendicular and parallel equation given the line: y = 2x - 5
Y-intercepts my vary on these problems, but the slopes should be the same:[br]Parallel: y = 2x -4[br]Perpendicular: y = -1/2x + 6