## GED Practice

### GED Math Review: Parallel and Perpendicular Lines

Questions:

Directions: Choose the best response for each problem.

1. The two linear equations y = 1/4x + 5 and y = 4x - 7 are.
• parallel
• perpendicular
• neither parallel nor perpendicular
2. The two linear equations x + 3x = 9 and 3x - y = 1 are.
• parallel
• perpendicular
• neither parallel nor perpendicular
3. Which of the following is parallel to 5x + 2y = 1?
• y = 5/2x - 1
• y = 2/5x + 3
• y = -2/5x + 1
• y = -5/2x - 7
4. Which of the following is parallel to y = -4/3x + 5
• 3x + 4y = 2
• 4x - 3y = 14
• -3x + 4y = 3
• -4x - 3y = -9
5. A line parallel to 2x - 3y = 0 must have a slope of __________.
• 2/3
• 3/2
• -2/3
• -3/2
6. Which of the following is perpendicular to 4x + 2y = 3?
• y = -2 + 3
• y = 2x - 5
• y = -1/2x + 1
• y = 1/2x -12
7. Which of the following is perpendicular to y = 5/4x + 5?
• -4x + 5y = -3
• -4x - 5y = 5
• -5x + 4y = 10
• 5x + 4y = -1
8. A line perpendicular to 7x + 2y = 6 must have a slope of __________.
• 7/2
• -7/2
• 2/7
• -2/7

1. neither parallel nor perpendicular
2. perpendicular
3. y = -5/2x - 7
4. -4x - 3y = -9
5. 2/3
6. y = 1/2x -12
7. -4x - 5y = 5
8. 2/7

Reference:

Complete Test Preparation for the GED Test 2014 by Steck-Vaughn