Select the TRUE statements.
For the function 48(1.25)x, the parameter for the growth factor is 1.25.
For the function f(x) = 75x + 250, the parameter for the beginning value is 75.
For the function 28(0.5)x, the parameter for the decay factor is 50%.
For the function y = 18x + 72, the parameter for the average rate of change is 18.