1 / 6

60 likes | 211 Vues

3.7 Perpendicular Lines in the Coordinate Plane. Postulate 18 “Slopes of Perpendicular Lines”. In a coordinate plane, 2 non-vertical lines are perpendicular if and only if the product of their slopes is -1. Vertical and Horizontal Lines are Perpendicular.

Télécharger la présentation
## 3.7 Perpendicular Lines in the Coordinate Plane

**An Image/Link below is provided (as is) to download presentation**
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.
Content is provided to you AS IS for your information and personal use only.
Download presentation by click this link.
While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

**Postulate 18“Slopes of Perpendicular Lines”**In a coordinate plane, 2 non-vertical lines are perpendicular if and only if the product of their slopes is -1. Vertical and Horizontal Lines are Perpendicular.**Example 1: Deciding whether the lines are perpendicular.**Line h: The slope of h is 3/4. Line j: The slope of j is -4/3. So the lines are perpendicular.**Example 2: Deciding whether the lines are perpendicular.**Line a: The slope of a is -2/3. Line b: The slope of b is -3/2. So the lines are NOT perpendicular. The Product needs to be -1.**Example 3: Deciding whether the lines are perpendicular.**Line r: Line s: The product of the slopes is 1, not -1. So, r and s are not perpendicular.**Example 4: Find an equation of a perpendicular line.**Line t has an equation . Find an equation of the line s that passes through P(4,0) and is perpendicular to t.

More Related