How does the horizontal asymptote of f(z) = 2+1 +4 compare to the horizontal asymptote of g (z) = 22+1 The horizontal asymptote of f(x) is 4 units greater than the horizontal asymptote of g(x). The horizontal asymptote of f(x) is 4 units less than the horizontal asymptote of g(x). The horizontal asymptote of f(x) is 8 units greater than the horizontal asymptote of g(x) The horizontal asymptote of f(x) is 8 units less than the horizontal asymptote of g(x). 47