Are f(x) and g(x) inverse functions across the domain [5, + ? ) f(x) = _/{x-5} +4 g(x) = (x-4)2 +5 a. no , because _/g(x)-5 + 4 = x b. yes because _/ g(x) -5 +4 = x c. yes because _/ x-5 +4/(x-4)2 +5 d. no, because [_/ x-5 +4] / [(x-4)2 +5] = x