Boyle's law states that the pressure and volume of a gas have an inverse relationship when the temperature is kept constant.
⇒ P ∝ 1V\;\frac{1}{V}V1
P = K KV\;\frac{K}{V}VK
PV = K
Boyle's law can be represented mathematically as PV = K, where P = Pressure, V = Volume and K is a constant.