Unit 2, Day 1

Unit 2, Day 1: Objective: Review of slopes of line; Slopes of parallel and perpendicular lines.

Define: The slope or gradient of a line describes its steepness, incline, or grade. Parallel lines have slopes that are negative reciprocals of each other. Perpendicular if and only if their slopes are negative reciprocals of each other.






Quiz:

1. Define slope
a)                           b)
 
2. Which one is a perpendicular lines
3. Which one is a parallel lines

Answer Key:

1. The slope or gradient of a line describes its steepness, incline, or grade.
2. B
3. A

Video: http://www.youtube.com/watch?v=R948Tsyq4vA