Question 60693
It's a little hard to tell what your function really is:

Is it {{{f(x) = 2/(5x)}}}?
Or is it {{{f(x) = (2/5)x}}}?

The graph of {{{f(x) = 2/(5x)}}} looks like this:
{{{graph(300,200,-5,5,-5,5,2/(5x))}}}

The graph of {{{f(x) = (2/5)x}}} looks like:
{{{graph(300,200,-5,5,-5,5,(2/5)x)}}}