Question

which operation does the word \inversely\ indicate? y varies inversely with x multiplication division logarithm

Explanation:

When $y$ varies inversely with $x$, the relationship is $y=\frac{k}{x}$ ($k$ is a non - zero constant), which implies multiplication of $x$ and $y$ gives a constant ($xy = k$). So the operation indicated by "inversely" is multiplication.

Answer:

Multiplication