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Common Core HSA.REI.B.4.A worksheet

High school · 16 questions · Common Core: HSA.SSE.B.3.B, HSA.REI.B.4.A, HSA.REI.B.4.B · England: GCSE Higher Algebra

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  1. Question 1

    Rewrite x² − 10x + 11 = 0 as (x − 5)² = k. Find k.

    Answer

  2. Question 2

    Write x² − 10x + 27 in the form (x + p)² + q. What is p?

    Answer

  3. Question 3

    Find the turning point of y = x² + 4x + 10 by completing the square. Type it like (2, −1).

    Answer

  4. Question 4

    Solve x² − 6x + 7 = 0 by completing the square. Give the larger solution to 2 decimal places.

    Answer

  5. Question 5

    Solve x² − 6x + 1 = 0 by completing the square. Give exact answers.

    • A. x = −3 ± 2√2
    • B. x = 6 ± 2√2
    • C. x = 3 ± 2√2
    • D. x = 3 ± √17
  6. Question 6

    Rewrite x² − 2x + 10 = 0 as (x − 1)² = k. Find k.

    Answer

  7. Question 7

    Write x² + 4x + 12 in the form (x + p)² + q. What is p?

    Answer

  8. Question 8

    Find the turning point of y = x² + 10x + 15 by completing the square. Type it like (2, −1).

    Answer

  9. Question 9

    Solve x² + 8x + 5 = 0 by completing the square. Give the smaller solution to 2 decimal places.

    Answer

  10. Question 10

    Solve x² + 12x + 12 = 0 by completing the square. Give exact answers.

    • A. x = −6 ± 24
    • B. x = −12 ± 2√6
    • C. x = −6 ± 2√6
    • D. x = 6 ± 2√6
  11. Question 11

    Rewrite x² − 8x + 5 = 0 as (x − 4)² = k. Find k.

    Answer

  12. Question 12

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

    Answer

  13. Question 13

    Find the turning point of y = x² − 6x + 19 by completing the square. Type it like (2, −1).

    Answer

  14. Question 14

    Solve x² − 12x + 8 = 0 by completing the square. Give the smaller solution to 2 decimal places.

    Answer

  15. Question 15

    Solve x² − 6x − 12 = 0 by completing the square. Give exact answers.

    • A. x = −3 ± √21
    • B. x = 3 ± √21
    • C. x = 3 ± √30
    • D. x = 3 ± 21
  16. Question 16

    Rewrite x² + 8x − 9 = 0 as (x + 4)² = k. Find k.

    Answer

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Answer key: Common Core HSA.REI.B.4.A worksheet

  1. 1. 14

  2. 2. -5

  3. 3. (−2, 6)

  4. 4. 4.41

  5. 5. C. x = 3 ± 2√2

  6. 6. -9

  7. 7. 2

  8. 8. (−5, −10)

  9. 9. -7.32

  10. 10. C. x = −6 ± 2√6

  11. 11. 11

  12. 12. 7

  13. 13. (3, 10)

  14. 14. 0.71

  15. 15. B. x = 3 ± √21

  16. 16. 25

HSA.REI.B.4a Worksheet: Completing the square | Eurekami