What are the domain and range of f(x)=logx-5

For this case we have the following function:
 f (x) = log (x) -5
 We note that the function is defined for all positive x values because:
 log (0) is NOT defined.
 The range of the function is all real numbers because the function f (x) can take positive and negative values.
 
 option 1
 domain: x> 0
 Range: all real numbers

The answer is a good luck