Practice: Section 6-6

Integration of Geometry: Parallel and Perpendicular Lines

Part 1: Parallel Lines

Directions: Write an equation in slope-intercept form of the line that passes through the given point and is parallel to the graph of each equation.

1. 2x + y = 5;  (3, 1)

2. 3x − y = 5;  (−1, −2)

3. 5x − 4y = 1;  (−8, 2)

4. 9x + 3y = 8;  (−1, −4)

5. y = 4/3x + 5;  (12, 3)

6. y = −3/4x + 1/4;  (4, −2)

Part 2: Perpendicular Lines

Directions: Write an equation in slope-intercept form of the line that passes through the given point and is perpendicular to the graph of each equation.

7. x − 6y = 2;  (2, 4)

8. 3x + 2y = −7;  (1, 1)

9. 5x + 4y = 8;  (10, 5)

10. 4x + 3y = −6;  (2, 1)

11. y = 1/4x − 4;  (−2, 3)

12. 2x + 10y = 3;  (2, 3)

13. x = 2y − 1;  (0, 0)

14. 4x + 7y = 6;  (−4, 1)