1. Given the functions f(x) = x + 1 and g(x) = 3-x, determine an equation for the combined function y = f(x)+ g(x). 2. If f= {(-7, 1), (-5, 8), (3, 11), (5,-1)) and g = {(-6, 4), (-5, 3), (-1, 7), (5, 5)), what is y = f(x) + g(x)? 5. Given the function f(x) = x-1, determine the value of f((3)). If f(x) = log 4x and g(x) = x-2, which of these expressions is equivalent to (f g)(4)?