Identify the initial amount a and the growth factor b In the exponential function f (x) = 620•7.8x

A 620, 7.8

B 7.8, 620

C 7.8x, 620

D 620, 7.8x

Given:

f (x) = 620e^7.8x

The standard equation for an exponential function is f (x) = Aoe^bx

where Ao is the initial amount

b is the growth factor

so, in this case, the initial amount is 620 and the growth factor is 7.8