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Find the x-intercept of a line

Grade 9 math · Fieldbook Learning

Name ______________________ Date __________

Set y to zero and solve for x.

  1. Where does the line y = −2x − 14 cross the x-axis? Give the x-coordinate.
  2. Where does the line y = −3x + 27 cross the x-axis? Give the x-coordinate.
  3. Where does the line y = 3x − 15 cross the x-axis? Give the x-coordinate.
  4. Where does the line y = −3x + 21 cross the x-axis? Give the x-coordinate.
  5. Where does the line y = 6x + 48 cross the x-axis? Give the x-coordinate.
  6. Where does the line y = 5x + 40 cross the x-axis? Give the x-coordinate.
  7. Where does the line y = −3x + 3 cross the x-axis? Give the x-coordinate.
  8. Where does the line y = 2x − 10 cross the x-axis? Give the x-coordinate.
  9. Where does the line y = 7x + 14 cross the x-axis? Give the x-coordinate.
  10. Where does the line y = 6x + 24 cross the x-axis? Give the x-coordinate.
  11. Where does the line y = −x − 8 cross the x-axis? Give the x-coordinate.
  12. Where does the line y = x + 8 cross the x-axis? Give the x-coordinate.
  13. Where does the line y = −8x − 24 cross the x-axis? Give the x-coordinate.
  14. Where does the line y = 10x + 90 cross the x-axis? Give the x-coordinate.
  15. Where does the line y = 3x + 15 cross the x-axis? Give the x-coordinate.
  16. Where does the line y = −7x − 42 cross the x-axis? Give the x-coordinate.
  17. Where does the line y = −2x − 12 cross the x-axis? Give the x-coordinate.
  18. Where does the line y = −18x − 90 cross the x-axis? Give the x-coordinate.
  19. Where does the line y = −18x + 108 cross the x-axis? Give the x-coordinate.
  20. Where does the line y = 4x − 4 cross the x-axis? Give the x-coordinate.
More free practice: fieldbooklearning.com/practice/grade-9/find-the-x-intercept-of-a-line/

Play it as a quiz game

7 of these questions as multiple choice, with near-miss wrong answers, ready for Kahoot or Blooket.

  1. Download the game's own question template: in Kahoot, Add question → Import spreadsheet; in Blooket, Create a set → Spreadsheet import.
  2. Click the matching button below, then click the first empty question row of the template and paste.
  3. Save the template (Kahoot needs .xlsx, Blooket .csv) and upload it.
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Answer key: Find the x-intercept of a line

  1. -7
  2. 9
  3. 5
  4. 7
  5. -8
  6. -8
  7. 1
  8. 5
  9. -2
  10. -4
  11. -8
  12. -8
  13. -3
  14. -9
  15. -5
  16. -6
  17. -6
  18. -5
  19. 6
  20. 1