Re: Quantitative reasoning exercise- NEED HELP!
Have you considered...
\(\displaystyle \left| \frac{1}{x}-\frac{1}{y} \right| \;=\; \left| \frac{y - x}{xy} \right|\)
And, if x > 0 and y > 0, we have...
\(\displaystyle \frac{ \left| y - x \right|}{xy}\)
Now what?