1. 8-7: Parallel and Perpendicular Lines Mr. Gallo

2. Parallel Lines  If two non-vertical lines have the _________ ________, then the lines are ___________. The 2 lines to right, a and b are parallel and have a slope of 2. What is the equation for each line? a: b: sameslope parallel

3. Examples: Write the slope of any line that is parallel to each given line. 1).2.) _________________

4. Point-Slope Form of an Equation: slope y coordinate of a given point x coordinate of a given point

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8. Perpendicular Lines  If two non-vertical lines have that are opposite, then the lines are perpendicular.. slopes reciprocals

9. Examples: Write the slope of any line that is perpendicular to each given line. 1).2.) _________________

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13. Homework: Reteach 8-7