How does the range of compare with the range of the parent function ? the range of both f(x) and g(x) is all real numbers the range of both f(x) and g(x) is all nonzero real numbers the range of f(x) is all real numbers, the range of g(x) is all real numbers except 6 the range of f(x) is all nonzero real numbers, the range of g(x) is all real numbers except 6.