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​Q14: Answers – Paper 1 – June 2018

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Content:

• Direct & Inverse Proportion – Square or cubes​

Quizzes:

• ​Direct & Inverse Proportion – Square or cubes

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Mark Scheme

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Working

y is inversely proportional to d²

When d = 10, y = 4

 

d is directly proportional to x²

When x = 2, d = 24

 

Find a formula for y in terms of x.

Give your answer in its simplest form.

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Question

14) y is inversely proportional to d²

When d = 10, y = 4

 

d is directly proportional to x²

When x = 2, d = 24

 

Find a formula for y in terms of x.

Give your answer in its simplest form.

[5 marks]

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