(1 point) Are the following statements true or false? '2 v 1. If x is in the domain of g, then x is in the domain of (f + g)(x). '2 v 2. (f - g)(a) = f(a) - g(a) as long as a is in both the domain of f and in the domain of g. ? v 3. The set of all x's that are in the domain of g and where g(x) is in the domain of f correctly describes the domain of f(g(x)). ? v 4. If x is an element of the domain of f(g(x)), then x is an element of the domain of f(x). ? v 5. The set of all x's that are in the domain of g and in the domain off and where f(x) i 0 correctly describes the domain of %(x). 7 v 6. If f(x) = 5, then f(a + h) = 5