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