Determine whether or not the graph is a graph of a function of x. a) Not a function b) Function 4. Question 4 Express the given function as a composite of functions f and g such that y = f(g(x)). y = 1/x^2-4 a) f(x) = 1/4, g(x) = x'- 4 b) f(x) = 1/x, g(x) = x'- 4 c) f(x) = 1/x^2, g(x) = - 1/4 d) f(x) = 1/x^2, g(x) = x - 4 5, Question 5 Determine whether or not the graph is a graph of a function of x. a) Not a function b) Function 6, Question 6 Express the given function as a composite of functions f and g such that y = f(g(x)). y = [3x+9] A) f(x) = [x], g(x) = 3x+ 9 b) f(x) = [-x], g(x) = 3x- 9 C) f(x) = -[x], g(x) =3x+9 d) f(x) = x, g(x) = 3x+9