Sheila M. answered • 01/27/13

Friendly College Math Professor - understands students' math anxiety

Hi, Jonathan.

Inverse variation is expressed in this format:

y = k/x , where x and y are variables in the problem, and k is a [k]onstant value.

For example if weight varies inversely with temperature, you would write an equation like this to represent this scenario: w = k/t

In your question posed above, there is only one choice that looks like what I've described.