Revision Note - Math - Number and Algebra - Variations

If $y \propto x$ (i.e. $y$ varies directly as $x$), then we ha… Read

If $y \propto \frac{1}{x}$ (i.e. $y$ varies inversely as $x… Read

If $y$ varies directly as $x$ and inversely as $z$, then we ha… Read

If $y$ is the sum of two parts, one part varies inversely as $x… Read