For this question, first consider what the form means. It means we have an equation g that has been substituted into the function f. In that case, I want to consider my variables in the F(x) equation, that would be the √(x) that we see. The reason why I'm focusing on this is because the 1 is a constant, its a number that cannot contain a substitution. Because we have a √(x) in two different locations, I'm assuming this is what has been substituted in.
Going to what I said in the beginning, g is the function that is substituting inside of f, that means g(x) = √(x). If that equation is being subbed in, then the f equation was most likely f(x) = (x+1)/x. We can assume this because the format of the equation wouldn't change when we remove the √(x), but we do need to add variables that the √(x) would sub into.
Let me know if that made sense and if you have any other questions.
