Direct proportion – medium – Primrose Kitten

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Direct proportion – medium

Last updated: 12/01/2021

GCSE Maths – Equivalency test Direct proportion Direct proportion – medium

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Question 1 of 25

1. Question
x ∝ y², when x = 18, y = 3. Express this relationship using an equation.
- x = 2y²
- x = y²
- x = 3y²
- x = 4y²
Correct

Incorrect
Question 2 of 25

2. Question
x ∝ √y, when x = 8, y = 16. Express this relationship using an equation.
- x = 2√y
- x = 4√y
- x = 3√y
- x = √y
Correct

Incorrect
Question 3 of 25

3. Question
x ∝ y³, when x = 175, y = 5. Express this relationship using an equation.
- x = 1.4y³
- x = 4.2y³
- x = 2.4y³
- x = -0.6y³
Correct

Incorrect
Question 4 of 25

4. Question
x ∝ √y, when x = 2, y = 16. Express this relationship using an equation.
- x = 0.5√y
- x = 2.5√y
- x = 1.5√y
- x = √y
Correct

Incorrect
Question 5 of 25

5. Question
x ∝ y³, when x = 112, y = 4. Express this relationship using an equation.
- x = 1.75y³
- x = y³
- x = 0.75y³
- x = 2.75y³
Correct

Incorrect
Question 6 of 25

6. Question
x ∝ √y, when x = 6, y = 16. Express this relationship using an equation.
- x = 1.5√y
- x = 2.5√y
- x = 3.5√y
- x = 0.5√y
Correct

Incorrect
Question 7 of 25

7. Question
x ∝ y², when x = 20, y = 5. Express this relationship using an equation.
- x = 0.8y²
- x = 2.4y²
- x = 1.8y²
- x = y²
Correct

Incorrect
Question 8 of 25

8. Question
x ∝ y², when x = 15, y = 5. Express this relationship using an equation.
- x = 0.6y²
- x = 1.6y²
- x = -0.4y²
- x = y²
Correct

Incorrect
Question 9 of 25

9. Question
x ∝ y², when x = 45, y = 5. Express this relationship using an equation.
- x = 1.8y²
- x = 3y²
- x = 3.8y²
- x = y²
Correct

Incorrect
Question 10 of 25

10. Question
x ∝ y², when x = 28, y = 4. Express this relationship using an equation.
- x = 1.75y²
- x = y²
- x = 0.75y²
- x = 3.75y²
Correct

Incorrect
Question 11 of 25

11. Question
x ∝ y², when x = 27, y = 3. Express this relationship using an equation.
- x = 3y²
- x = 5y²
- x = 4y²
- x = y²
Correct

Incorrect
Question 12 of 25

12. Question
x ∝ y³, when x = 48, y = 4. Express this relationship using an equation.
- x = 0.75y³
- x = y³
- x = 2.25y³
- x = -1.25y³
Correct

Incorrect
Question 13 of 25

13. Question
x ∝ y³, when x = 384, y = 8. Express this relationship using an equation.
- x = 0.75y³
- x = 2.75y³
- x = y³
- x = 2y³
Correct

Incorrect
Question 14 of 25

14. Question
x ∝ y, when x = 3, y = 4. Express this relationship using an equation.
- x = 0.75y
- x = 2y
- x = 1.5y
- x = y
Correct

Incorrect
Question 15 of 25

15. Question
x ∝ y², when x = 8, y = 2. Express this relationship using an equation.
- x = 2y²
- x = 4y²
- x = 3y²
- x = y²
Correct

Incorrect
Question 16 of 25

16. Question
x ∝ y, when x = 6, y = 2. Express this relationship using an equation.
- x = 3y
- x = 9y
- x = 4y
- x = y
Correct

Incorrect
Question 17 of 25

17. Question
x ∝ y², when x = 35, y = 5. Express this relationship using an equation.
- x = 1.4y²
- x = 4.2y²
- x = y²
- x = 2y²
Correct

Incorrect
Question 18 of 25

18. Question
x ∝ y, when x = 4, y = 8. Express this relationship using an equation.
- x = 0.5y
- x = -1.5y
- x = -0.5y
- x = y
Correct

Incorrect
Question 19 of 25

19. Question
x ∝ y², when x = 10, y = 5. Express this relationship using an equation.
- x = 0.4y²
- x = y²
- x = 1.2y²
- x = 2.4y²
Correct

Incorrect
Question 20 of 25

20. Question
x ∝ y, when x = 9, y = 4. Express this relationship using an equation.
- x = 2.25y
- x = 0.25y
- x = 4.25y
- x = 3y
Correct

Incorrect
Question 21 of 25

21. Question
x ∝ y³, when x = 100, y = 5. Express this relationship using an equation.
- x = 0.8y³
- x = 2.4y³
- x = -0.2y³
- x = 1.6y³
Correct

Incorrect
Question 22 of 25

22. Question
x ∝ y³, when x = 108, y = 6. Express this relationship using an equation.
- x = 0.5y³
- x = 2.5y³
- x = 2y³
- x = y³
Correct

Incorrect
Question 23 of 25

23. Question
x ∝ y³, when x = 144, y = 4. Express this relationship using an equation.
- x = 2.25y³
- x = 4.5y³
- x = 3y³
- x = 0.25y³
Correct

Incorrect
Question 24 of 25

24. Question
x ∝ y³, when x = 75, y = 5. Express this relationship using an equation.
- x = 0.6y³
- x = y³
- x = -0.4y³
- x = 1.2y³
Correct

Incorrect
Question 25 of 25

25. Question
x ∝ y², when x = 8, y = 4. Express this relationship using an equation.
- x = 0.5y²
- x = 2.5y²
- x = y²
- x = -1.5y²
Correct

Incorrect

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