Download presentation

Presentation is loading. Please wait.

Published byFranklin Lucas Modified over 8 years ago

2
Slopes of Parallel and Perpendicular Lines Objectives: 1. Discover the relationships between the slopes of parallel lines and perpendicular lines.

3
What type of lines do lines “p” and “q” look like? parallel lines

4
Calculate the slope of each.

5
slope of p = slope of q = =

6
What do you notice about the slopes of these two lines? The slopes are congruent. C-12: Parallel Slope Conj. In a coordinate plane, two lines are _____________if and only if their slopes are ____________. parallel congruent

7
Are these lines parallel? slope a = - slope b = - NO – Slopes are not

8
Are these lines parallel? slope c = slope d = = YES – Slopes are

9
C-22 Perpendicular Slope Conjecture: Two nonvertical lines are _____________ if and only if their slopes are perpendicular opposite (or negative) reciprocals of each other.

10
You will be shown the slopes of two lines. On the corner of your notes write down whether each pair of lines are parallel, perpendicular, or neither.

11
1.slope of line r = slope of line s = These lines are parallel.

12
2. slope of line t = slope of line u = These lines are perpendicular.

13
3. slope of line t = slope of line u = These lines are parallel.

14
4. slope of line t = slope of line u = NEITHER!! Slopes are not congruent or opposite reciprocals of each other.

15
5. slope of line t = slope of line u = 7 Perpendicular.

Similar presentations

© 2023 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google