1. Parallel and Perpendicular Lines Section 6-6

2. Question What does parallel mean? Are there examples in your life that you see parallel lines? Are there examples in this room?

3. Question What does perpendicular mean? Are there examples in your life or in this room?

4. Notes Parallel lines share the same plane and never intersect. A plane is a flat surface Tape Example

5. Notes When exploring equations parallel lines have the same slope but have different y-intercepts Slider Experiment

6. Question What is the reciprocal of the following equations:

7. Notes In order to find the equation that will create a perpendicular line to an equation replace the slope with it’s negative reciprocal.

9. Example Find the equation which would be parallel to y = -2x + 3 and through the point (-3,5) Find the perpendicular slope: 2x + 3y = 5

10. Example Find the perpendicular equation to: Through the point (4,2)