Mathematics for IGCSE & O level - Proportion (Section 3 - No. 18)

If *y* varies inversely as the square of *x*, which of the following statements is correct?

As x increases, y increases.

As x increases, y decreases.

As x increases, y remains constant.

y is directly proportional to x^2

When a variable is inversely proportional to the square of another, as the second variable increases, the first decreases.