This exercise is based on the following functions. f(x) = x2+ 2 with domain (-co, +co) g(x) = x - 2 with domain (-co, +co) h(x) = x + 6 with domain [38, +co) u(x) = Vx + 38 with domain [-38, 0) v(x) = V 38 - x with domain [0, 38] (a) Write a formula for the indicated function. m = 4u m x = (b) Give the 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 UNDEFINED.) m( -2) =