Answer:
All real values
Step-by-step explanation:
Given
[tex]f(x) = (\frac{1}{3})^x[/tex]
Required
Determine the domain
The domain of a function are the values of x that makes the function to be defined.
From the given function, we can see that no single value of x will make the function become undefined.
Hence, the domain is:
x = (-∞, +∞)
In other words, the domain implies that all real numbers.
Hence:
Option (A) answers the question.
