Question

What does it mean to be inversely proportional?

Answer 1

Means as one goes up, the other goes down.

Answer 2

f(x) is inversely proportional to x
\[f(x)\propto \frac1x\\
f(x)=\frac kx\]where k is the constant of proportionality

Answer 3

if one quantity is inversely proportional to other then increasing one quantity decreases other..