The base of the exponential function is 3.
<h3>How to identify the base?</h3>
Here we have the graph of an exponential function of the form:
f(x) = b^x
We want to find the value of b.
Remember that any number with an exponent of 1 is equal to the number:
a^1 = a
Then, we will have:
f(1) = b^1 = b
If you look at the graph, you can see that when x = 1, the function is equal to 3.
Then:
f(1) = 3 = b
From this, we can conclude that the base is equal to 3.
If you want to learn more about exponential functions, you can read:
brainly.com/question/11464095