We are given the function:
f(x) = 4(3)²x
Now let us simplify this to get to the correct option.
Here we are given the options:
f(x) = 36x f(x) = 4(9)x f(x) = 144x f(x) = 4(6x)
Now if we simplify our function we have (3)²,
If we simplify it we will get 3*3 which is 9.
So rewriting our function:
f(x) = 4(9)x
So answer is second option f(x) = 4(9)x.