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Write the equation of a line from the slope and y-intercept

Grade 8 math · Fieldbook Learning

Name ______________________ Date __________

Use y = mx + b, with m the slope and b the y-intercept.

  1. A line has slope 6 and y-intercept −4. Write its equation in the form y = mx + b.
  2. A line has slope −5 and y-intercept −3. Write its equation in the form y = mx + b.
  3. A line has slope −6 and y-intercept 3. Write its equation in the form y = mx + b.
  4. A line has slope −8 and y-intercept −5. Write its equation in the form y = mx + b.
  5. A line has slope 12 and y-intercept 1. Write its equation in the form y = mx + b.
  6. A line has slope 6 and y-intercept −1. Write its equation in the form y = mx + b.
  7. A line has slope 3 and y-intercept 13. Write its equation in the form y = mx + b.
  8. A line has slope 3 and y-intercept 8. Write its equation in the form y = mx + b.
  9. A line has slope −12 and y-intercept 1. Write its equation in the form y = mx + b.
  10. A line has slope 11 and y-intercept −16. Write its equation in the form y = mx + b.
  11. A line has slope −2 and y-intercept −8. Write its equation in the form y = mx + b.
  12. A line has slope −3 and y-intercept 6. Write its equation in the form y = mx + b.
  13. A line has slope 14 and y-intercept 19. Write its equation in the form y = mx + b.
  14. A line has slope 7 and y-intercept 29. Write its equation in the form y = mx + b.
  15. A line has slope 11 and y-intercept 3. Write its equation in the form y = mx + b.
  16. A line has slope 8 and y-intercept 15. Write its equation in the form y = mx + b.
  17. A line has slope 26 and y-intercept 18. Write its equation in the form y = mx + b.
  18. A line has slope −10 and y-intercept −23. Write its equation in the form y = mx + b.
  19. A line has slope −9 and y-intercept −43. Write its equation in the form y = mx + b.
  20. A line has slope 15 and y-intercept −36. Write its equation in the form y = mx + b.
More free practice: fieldbooklearning.com/practice/grade-8/write-the-equation-of-a-line-from-the-slope-and-y-intercept/

Answer key: Write the equation of a line from the slope and y-intercept

  1. y = 6x - 4
  2. y = -5x - 3
  3. y = -6x + 3
  4. y = -8x - 5
  5. y = 12x + 1
  6. y = 6x - 1
  7. y = 3x + 13
  8. y = 3x + 8
  9. y = -12x + 1
  10. y = 11x - 16
  11. y = -2x - 8
  12. y = -3x + 6
  13. y = 14x + 19
  14. y = 7x + 29
  15. y = 11x + 3
  16. y = 8x + 15
  17. y = 26x + 18
  18. y = -10x - 23
  19. y = -9x - 43
  20. y = 15x - 36