Which exponential function has an initial value of 2?f(x) = 2(3x)f(x) = 3(2x)

f(x) = 2(3x)
Exponential functions represent the initial value outside of the parentheses so if 2 is the initial value it has to be on the outside of the parentheses. 
Exponential growth formula.
[tex]y=a(1+r)^{x}[/tex]
a represents the initial value.