GCSE Maths Practice: inverse-proportion

Question 9 of 10

Identify pairs that satisfy inverse proportion.

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\( \begin{array}{l} \text{Which of these value pairs follow inverse proportion?} \end{array} \)

Select all correct options:

\( \text{(x = 2, y = 12), (x = 4, y = 6)} \) \( \text{(x = 3, y = 9), (x = 6, y = 4.5)} \) \( \text{(x = 5, y = 10), (x = 10, y = 5)} \) \( \text{(x = 8, y = 2), (x = 12, y = 4)} \)

Inverse proportion: product x × y must be constant.