We are supposed to explain why the given function can be expressed in form
, when
.
Since the given function is an exponential function we can express it as
.
Now let us substitute x=0 in the given function,

Let us substitute x=0 in our function.
Upon substituting a=1 in our function we will get,

Therefore, our function f can be represented by the formula of the form
.
Answer:
the answer is B
Step-by-step explanation:
it makes the most sense