Identifying Exponential Growth Functions Which is an exponential growth function? f(x) = 6(0.25)x f(x) = 0.25(5.25)x f(x) = –4.25x f(x) = (–1.25)x

Answer:f(x) = 0.25(5.25)ˣStep-by-step explanation:In order to show exponential growth, the numbers must be positive and the base of the exponent must be larger than 1.Think of it as a percentage.  The base of the exponent will be the percentage of the original amount taken each time; if it is less than 1.00 then it would shrink.  Larger than 1.00 will grow.  The only one with positive numbers and a growth factor of greater than 1 is f(x) = 0.25(5.25)ˣ.