Question

What is the domain of f(x) = 4^x?

Answer 1

The domain are all real numbers, there are no restrictions on the value x can be the domain is the set of all real numbers.

Answer 2

All real numbers.

D is the correct option.

Explanation:

The given function is
`f(x)=4^x`

Domain is the set of x values for which the function is defined.

In this exponential function, no matter we take which x values, the function remains defined for all real values of x.

Therefore, the domain of the given exponential function is All real numbers.

D is the correct option.