Answer:
"The domain of both functions is all real numbers."
Step-by-step explanation:
Given
[tex]f(x) = 5x\\and\\g(x) = 5x[/tex]
We can see that the function will have some value for any value of x and is not undefined on any value of x. So the domain of f(x) is all real numbers.
Similarly, g(x) is also not undefined on any value of x so it also has domain of all real numbers.
The range of f(x) and g(x) will be all real numbers as the functions do not produce infinity on any of the input.
Only the statement that
"The domain of both functions is all real numbers."
is true for the given functions ..