Which functions are equivalent to f (x) = rootindex 4 startroot 162 endroot superscript x? check all that apply. f (x) = 162 superscript startfraction x over 4 f (x) = (3 rootindex 4 startroot 2 endroot) superscript x f (x) = 9 rootindex 4 startroot 2 endroot superscript x f (x) = 126 superscript startfraction 4 over x f (x) = left-bracket 3 (2 superscript one-fourth baseline) right-bracket superscript x
