GED Practice

GED Math Review: Writing Linear Equations


Questions:

Directions: For questions 1 and 2, match the problem below with one of the equations from above. For the remaining questions, choose the one best response.


    • y = 3x - 5
    • y = 3x + 5
    • y = 1/3x + 5

  1. line with slope of 3 that passes through the point (-2, -11)
  2. line that passes through (3, 6) and (9, 8)
  3. Find the equation of a line with a slope of -1/3 that passes through the point (9, 3).
    • y = 9x - 1/3
    • y = 3x - 1/3
    • y = -1/3x + 6
    • y = -1/3x + 10
  4. Find the equation of a line with a slope of 13/2 that passes through the point (-2, -10).
    • y = 13/2x - 36
    • y = 13/2x + 63
    • y = 13/2x + 16
    • y = 13/2x + 3
  5. Find the equation of a line that passes through (5, 0) and (0, -2).
    • y = -2/5 + 2
    • y = 2/5x - 2
    • y = 5/2x + 5
    • y = -5/2x + 12.5
  6. Find the equation of a line that passes through (-2, 3) and (5, -4).
    • y = x - 9
    • y = x + 9
    • y = -x -1
    • y = -x + 1
  7. Belinda saves the same amount of money every week. In week 3, she had $55, and in week 8, she had $100. Which equation below represents of Belinda's savings?
    • y = 9x - 492
    • y = 9x + 28
    • y = 1/9x - 1/9
    • y = 1/9x + 2/3
  8. A tree is growing 2 feet per year. If it was 18 feet tall during year 3, which equation below represents the tree's growth?
    • y = 2x + 12
    • y = 3x + 12
    • y = 3x - 12
    • y = 2x - 33
Answers:


    1. y = 3x - 5
    2. y = 1/3x + 5
    3. y = -1/3x + 6
    4. y = 13/2x + 3
    5. y = 2/5x - 2
    6. y = -x + 1
    7. y = 9x + 28
    8. y = 2x + 12




    Reference:




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