Download presentation

1
**5.7 Parallel and Perpendicular Lines**

Parallel Lines - 2 lines that never intersect They have the same slope m1 = m2 They have different y-intercepts b1 ≠ b2 Perpendicular Lines - 2 lines that intersect They create 4 right angles They have different slopes (m1)(m2) = -1 They can have the same y-intercept

2
**Identify the lines as parallel or perpendicular.**

Ex A) 2x + 5y = x + 10y = 18 Line 1 Line 2 2x + 5y = 7 4x + 10y = 18 -2x -2x -4x -4x 5y = -2x + 7 10y = -4x + 18 5 5 5 10 10 10 Parallel

3
**Ex B) Line 1 Line 2 3x + 6y = 8 -3x -3x 6y = -3x + 8 6 6 6**

(m1)(m2) = -1 Perpendicular

4
**Write an equation in slope-intercept form that is parallel to the given line and**

passes through the given point. Ex C) Point-Slope Form Slope-Intercept Form

5
**Write an equation in slope-intercept form that is parallel to the given line and**

passes through the given point. Ex D)

6
Point-Slope Form Slope-Intercept Form

7
**Ex E) m= opposite and reciprocal**

Write an equation in slope-intercept form that is perpendicular to the given line and passes through the given point. Ex E) m= opposite and reciprocal Point-Slope Form Slope-Intercept Form

8
**Write an equation in slope-intercept form that is perpendicular to the given line**

and passes through the given point. Ex F)

9
Point-Slope Form Slope-Intercept Form

Similar presentations

© 2024 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