Question

HELP ASAP worth 15 points

Answer 1

hola!

The domain of a function is the set containing all possible values the independent variable is 'allowed' to take, in order for the function to be well-defined.

There is no possible way
`3^(x - 2)` can be undefined for a real x.

Hence,
Option [ D ] : x is a real number is CORRECT

hope it helps!