Quick Review/Preview 1. What is the Slope-Intercept Form ? y = mx + b 2. Find the “negative reciprocal” of each fraction

Overview:

Overview Parallel Lines and Perpendicular Lines Property of their slopes Write equations for each type of lines

Parallel Lines:

Parallel Lines Parallel Lines - lines that never intersect What is the slope of the red line? 1/2 What is the slope of the blue line? 1/2 Parallel Lines have the slope! same

Parallel Lines:

Parallel Lines Determine if the lines are parallel 1. 2 x + 6 y = 12 6 y = -2 x + 12 yes

Parallel Lines:

Parallel Lines Determine if the lines are parallel 2. 6 x + 8 y = -24 8 y = -6 x – 24 No

Parallel Lines:

Parallel Lines Determine if the lines are parallel 3. 4 x + 6 y = -2 6 y = -4 x – 2 No

Equations of Parallel Lines:

Equations of Parallel Lines 4. Write an equation for the line that contains (5, 1) and is parallel to m =

Equations of Parallel Lines:

Equations of Parallel Lines 5. Write an equation for the line that contains (2, -6) and is parallel to m = 3 y + 6 = 3( x – 2)

Equations of Parallel Lines:

Equations of Parallel Lines 6. Write an equation for the line that contains (-4, 3) and is parallel to m =

Perpendicular Lines:

Perpendicular Lines Perpendicular Lines – lines that intersect to form right angles What is the slope of the red line? -1/4 What is the slope of the blue line? 4/1 Perpendicular Lines have slope! opposite reciprocal

Perpendicular Lines:

Perpendicular Lines What is the slope of the perpendicular line? 7. -5/2 8. 5/1 = 5 9. 1/2

Equations of Perpendicular Lines:

Equations of Perpendicular Lines 10. Find the equation of the line that contains (0, -2) and is perpendicular to y = 5x + 3 m =

Equations of Perpendicular Lines:

Equations of Perpendicular Lines 11. Find the equation of the line that contains (1, 8) and is perpendicular to m =

Equations of Perpendicular Lines:

Equations of Perpendicular Lines 12. Find the equation of the line that contains (2, -3) and is perpendicular to m = 2 y + 3 = 2( x – 2)

Perpendicular Lines:

Perpendicular Lines 13. Determine if the lines are perpendicular: and No 14. Determine if the lines are perpendicular: and Yes

You do not have the permission to view this presentation. In order to view it, please
contact the author of the presentation.

Send to Blogs and Networks

Processing ....

Premium member

Use HTTPs

HTTPS (Hypertext Transfer Protocol Secure) is a protocol used by Web servers to transfer and display Web content securely. Most web browsers block content or generate a “mixed content” warning when users access web pages via HTTPS that contain embedded content loaded via HTTP. To prevent users from facing this, Use HTTPS option.