Help with 1-6 please

See CalcChat.com for tutorial help and worked 1.5 Exercises For instructions on how to use a graphing utili Vocabulary and Concept Check In Exercises 1-4, fill in the blank(s). 1. Two functions f and g can be combined by the arithmetic operations of , and to create new functions. 2. The of the function f with the function g is (f . g)(x) = f(g(x)). 3. The domain of fog is the set of all x in the domain of g such that is in the domain of f. 4. To decompose a composite function, look for an and an function. 5. Given f(x) = x2 + 1 and (fg)(x) = 2x(x2 + 1), what is g(x)? 6. Given (f . g)(x) = f(x2 + 1), what is g(x)