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Completing the square

10th grade (Year 11 in England) · 16 questions · Common Core: HSA.SSE.B.3.B, HSA.REI.B.4.A · England: GCSE Higher Algebra

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  1. Question 1

    Find the turning point of y = x² + 4x + 7 by completing the square. Type it like (2, −1).

    Answer

  2. Question 2

    Write x² − 2x − 3 in the form (x + p)² + q. What is q?

    Answer

  3. Question 3

    Find the turning point of y = x² + 6x by completing the square. Type it like (2, −1).

    Answer

  4. Question 4

    Write x² − 8x + 28 in the form (x + p)² + q. What is q?

    Answer

  5. Question 5

    Find the turning point of y = x² + 12x + 40 by completing the square. Type it like (2, −1).

    Answer

  6. Question 6

    Write x² − 6x in the form (x + p)² + q. What is p?

    Answer

  7. Question 7

    Find the turning point of y = x² + 2x + 4 by completing the square. Type it like (2, −1).

    Answer

  8. Question 8

    Write x² + 12x + 46 in the form (x + p)² + q. What is q?

    Answer

  9. Question 9

    Find the turning point of y = x² − 2x + 2 by completing the square. Type it like (2, −1).

    Answer

  10. Question 10

    Write x² + 12x + 32 in the form (x + p)² + q. What is p?

    Answer

  11. Question 11

    Find the turning point of y = x² − 12x + 28 by completing the square. Type it like (2, −1).

    Answer

  12. Question 12

    Write x² − 6x + 24 in the form (x + p)² + q. What is p?

    Answer

  13. Question 13

    Find the turning point of y = x² + 12x + 35 by completing the square. Type it like (2, −1).

    Answer

  14. Question 14

    Write x² − 8x + 4 in the form (x + p)² + q. What is q?

    Answer

  15. Question 15

    Find the turning point of y = x² − 8x + 18 by completing the square. Type it like (2, −1).

    Answer

  16. Question 16

    Write x² − 6x + 22 in the form (x + p)² + q. What is p?

    Answer

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Answer key: Completing the square

  1. 1. (−2, 3)

  2. 2. -4

  3. 3. (−3, −9)

  4. 4. 12

  5. 5. (−6, 4)

  6. 6. -3

  7. 7. (−1, 3)

  8. 8. 10

  9. 9. (1, 1)

  10. 10. 6

  11. 11. (6, −8)

  12. 12. -3

  13. 13. (−6, −1)

  14. 14. -12

  15. 15. (4, 2)

  16. 16. -3