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Decide whether a relation is a function

9th grade (Year 10 in England) · 16 questions · Common Core: HSF.IF.A.1 · England: GCSE Higher Algebra

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  1. Question 1

    The graph shows a set of points. Do they represent a function of x?

    xy−66−66120(0, 5)(−1, −2)(5, 4)(4, 5)
    • A. Yes
    • B. No

  2. Question 2

    Is this relation a function? {(8, 4), (−4, 1), (4, −5), (5, 3), (4, −8)}

    • A. Yes
    • B. No

  3. Question 3

    Which set of ordered pairs is a function?

    • A. {(−1, 5), (−4, 5), (−3, 3), (2, 3)}
    • B. {(−4, 1), (−3, 6), (−1, 6), (−4, 2)}
    • C. {(2, −2), (−4, 4), (6, 2), (−4, 5)}
    • D. {(5, 0), (−2, 2), (0, −1), (0, 0)}

  4. Question 4

    The graph shows a set of points. Do they represent a function of x?

    xy−66−66120(6, −1)(4, 1)(2, −4)(−5, −2)
    • A. Yes
    • B. No

  5. Question 5

    Is this relation a function? {(3, −2), (−5, 0), (−1, 1), (3, 1), (4, 9)}

    • A. Yes
    • B. No

  6. Question 6

    Which set of ordered pairs is a function?

    • A. {(−3, 0), (6, −1), (3, 3), (−3, −3)}
    • B. {(3, 4), (4, −2), (0, 3), (5, 2)}
    • C. {(2, 5), (3, 4), (4, −3), (3, 6)}
    • D. {(−1, 2), (−3, 6), (3, 7), (−3, 5)}

  7. Question 7

    The graph shows a set of points. Do they represent a function of x?

    xy−66−66120(2, 3)(−5, −4)(−3, −5)(0, −5)(2, 5)
    • A. Yes
    • B. No

  8. Question 8

    Is this relation a function? {(−5, −5), (−5, −9), (0, −4), (3, 3), (6, −1)}

    • A. Yes
    • B. No

  9. Question 9

    Which set of ordered pairs is a function?

    • A. {(2, 7), (−2, 7), (−1, −1), (−2, 8)}
    • B. {(0, 1), (−2, 5), (−1, −4), (−1, −7)}
    • C. {(6, −2), (5, 0), (4, 5), (4, 6)}
    • D. {(−1, −3), (2, −2), (6, −1), (0, 1)}

  10. Question 10

    The graph shows a set of points. Do they represent a function of x?

    xy−66−66120(6, 5)(4, −3)(3, 2)(0, 5)
    • A. Yes
    • B. No

  11. Question 11

    Is this relation a function? {(−5, 4), (7, −4), (2, 3), (−2, 8), (−6, 5)}

    • A. Yes
    • B. No

  12. Question 12

    Which set of ordered pairs is a function?

    • A. {(4, 6), (5, −1), (3, 7), (3, 4)}
    • B. {(−1, 2), (1, 3), (2, 1), (−1, −1)}
    • C. {(−2, 2), (0, 1), (−3, 7), (−2, −1)}
    • D. {(1, 5), (−1, −2), (−3, 5), (0, 5)}

  13. Question 13

    The graph shows a set of points. Do they represent a function of x?

    xy−66−66120(6, −2)(3, 7)(0, 4)(−2, 6)
    • A. Yes
    • B. No

  14. Question 14

    Is this relation a function? {(0, 3), (−5, 4), (3, −3), (−5, 0), (2, 7)}

    • A. Yes
    • B. No

  15. Question 15

    Which set of ordered pairs is a function?

    • A. {(5, 4), (1, 4), (4, 5), (4, 6)}
    • B. {(5, 1), (0, −3), (6, 4), (5, 0)}
    • C. {(1, −4), (4, 7), (−2, 6), (4, 9)}
    • D. {(5, 6), (0, 5), (3, 7), (2, 5)}

  16. Question 16

    The graph shows a set of points. Do they represent a function of x?

    xy−66−66120(3, 5)(5, −2)(−5, 1)(6, 6)
    • A. Yes
    • B. No

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  1. Yes
  2. No
  3. {(−1, 5), (−4, 5), (−3, 3), (2, 3)}
  4. Yes
  5. No
  6. {(3, 4), (4, −2), (0, 3), (5, 2)}
  7. No
  8. No
  9. {(−1, −3), (2, −2), (6, −1), (0, 1)}
  10. Yes
  11. Yes
  12. {(1, 5), (−1, −2), (−3, 5), (0, 5)}
  13. Yes
  14. No
  15. {(5, 6), (0, 5), (3, 7), (2, 5)}
  16. Yes