Alright, Cathryn, if we asked for f(2), we'd put 2 in for x and get -2/2 = -1, right?
In this instance, we are putting g(x) in for x instead, so we have -2/(7/x).
We don't normally like a fraction in our fraction, so we multiply by x/x and get -2x/7.
I hope this helps!
