If $y \propto \frac{1}{x}$ (i.e. $y$ varies inversely as $x$), then we have
\begin{equation*}
y=\frac{k}{x},
\end{equation*}
where $k$ is a non-zero constant.
Resources for HKDSE Mathematics
Resources for HKDSE Mathematics
If $y \propto \frac{1}{x}$ (i.e. $y$ varies inversely as $x$), then we have
\begin{equation*}
y=\frac{k}{x},
\end{equation*}
where $k$ is a non-zero constant.
