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Proportional relationships

7th grade (Year 8 in England) · 16 questions · Common Core: 7.RP.A.2, 7.RP.A.3 · England: KS3 Ratio, GCSE Foundation Ratio

Name

Date

Score/ 16

  1. Question 1

    Is this relationship proportional? x: 4, 8, 10 → y: 12, 24, 30

    • A. Yes, proportional
    • B. No, not proportional

  2. Question 2

    Leo can type 12 words in 3 minutes. At the same rate, how many words in 4 minutes?

    Answer

  3. Question 3

    y is proportional to x, and y = 6 when x = 3. Find the constant of proportionality k in y = kx.

    xy24681024681012141618200y = 2x(3, 6)

    Answer

  4. Question 4

    Is this relationship proportional? x: 1, 2, 7 → y: 2, 4, 14

    • A. Yes, proportional
    • B. No, not proportional

  5. Question 5

    Lucia can type 16 words in 8 minutes. At the same rate, how many words in 10 minutes?

    Answer

  6. Question 6

    y is proportional to x, and y = 60 when x = 6. Find the constant of proportionality k in y = kx.

    xy123456789101020304050607080901000y = 10x(6, 60)

    Answer

  7. Question 7

    Is this relationship proportional? x: 1, 2, 6 → y: 5, 11, 30

    • A. Yes, proportional
    • B. No, not proportional

  8. Question 8

    Omar can type 10 words in 2 minutes. At the same rate, how many words in 10 minutes?

    Answer

  9. Question 9

    y is proportional to x, and y = 72 when x = 8. Find the constant of proportionality k in y = kx.

    xy1234567891045900y = 9x(8, 72)

    Answer

  10. Question 10

    Is this relationship proportional? x: 6, 7, 8 → y: 12, 14, 16

    • A. Yes, proportional
    • B. No, not proportional

  11. Question 11

    Kofi can type 12 words in 2 minutes. At the same rate, how many words in 15 minutes?

    Answer

  12. Question 12

    y is proportional to x, and y = 10 when x = 2. Find the constant of proportionality k in y = kx.

    xy123456789101530450y = 5x(2, 10)

    Answer

  13. Question 13

    Is this relationship proportional? x: 1, 2, 6 → y: 7, 14, 42

    • A. Yes, proportional
    • B. No, not proportional

  14. Question 14

    Luis can type 24 words in 4 minutes. At the same rate, how many words in 6 minutes?

    Answer

  15. Question 15

    y is proportional to x, and y = 42 when x = 6. Find the constant of proportionality k in y = kx.

    xy1234567891028560y = 7x(6, 42)

    Answer

  16. Question 16

    Is this relationship proportional? x: 5, 8, 10 → y: 40, 65, 80

    • A. Yes, proportional
    • B. No, not proportional

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Answer key: Proportional relationships

  1. 1. A. Yes, proportional

  2. 2. 16

  3. 3. 2

  4. 4. A. Yes, proportional

  5. 5. 20

  6. 6. 10

  7. 7. B. No, not proportional

  8. 8. 50

  9. 9. 9

  10. 10. A. Yes, proportional

  11. 11. 90

  12. 12. 5

  13. 13. A. Yes, proportional

  14. 14. 36

  15. 15. 7

  16. 16. B. No, not proportional