This exercise is based on the following functions. f(x) = x+2 with domain (-0, +) - g(x)=x 2 with domain (-0, +) h(x)=x+7 with domain [38, +) u(x)=x+38 with domain [-38, 0) v(x)=18x with domain (0, 18) For q = ; a = 2, do the following. g (a) Write a formula for the indicated function. 9(x) = (b) Give the function's domain. (Enter your answer using interval notation.) (c) Specify the function's value at the given point a = 2, if defined. (If an answer is undefined, enter UNDEFI 9(2) =