Answer:
inverse relationship
Explanation:
If one variable decreases and the other increases, it means there is an inverse relationship between the variables.
for example, in ideal gas equation,
PV = nRT
Where, P is the pressure, V is the volume, R be the gas constant and T be the absolute temperature.
If the temperature is constant, P V = constant
It means that the pressure is inversely proportional to the volume of the gas.