Write, as single function, gf(x) in terms of x.

f(x)=2x-1 g(x)=3/x+1

To write this as a single function you simply substute the f(x) function for the 'x' terms in the g(x) function.

Here's an example to illustrate: if f(x) = 3x+2, and g(x) = sin(x), then g(f(x)) = sin(3x+2). Can you take it from here?

Sorry this doesn't really help can you please solve the specific one I have, so that I can understand it better. Thanks!

sorry this doesn't really help can u please solve the specific one i have, so that i can understand it better. thnx!

No - our policy on this site is to not do your homework for you. Show us your effort to solve this yourself and we'll check it for you. And please do not indicate that my response is "unhelpful" - that is to be used only if a response is incorrect.

Look I can't solve the specific problem if you can't help then don't bother trying! The problem you have showed me is the there way round which is much easier! So if you want me not to mark your answer as unhelpful then answer with something helpful. Thanks mate!