The function f(x) = 25(4)x represents the growth of a bird population every year in a national park. kyle wants to manipulate the formula to an equivalent form that calculates every half-year, not every year. which function is correct for kyles purposes? f(x) = 25(4)the x over 2 power f(x) = twenty five halves(4)x f(x) = 25(4 to the one half power)2x f(x) = 50(2)x