Inverse proportion

A relationship in which one variable is a constant multiple of the reciprocal of another, so it can be written in the form $y=\frac{k}{x}$.

A relationship in which one quantity is a constant multiple of the reciprocal of another, such as y = k/x.

A relationship in which the product of two quantities is constant: $xy=k$, or $y=\frac{k}{x}$.

A relationship in which one variable is proportional to the reciprocal of another, so it can be written as $y=\frac{k}{x}$ and the product $xy$ is constant.

A relationship in which one quantity is proportional to the reciprocal of another quantity, or of a stated power or root of that quantity.

A relationship in which the product of two quantities is constant: xy = k, or y = k/x.