Algebra-2

Let's examine each function and determine its domain:

 

This is a linear function, which is defined for all real values of . So, its domain is all real numbers:

Domain:

Does not have a domain of .

 

The logarithmic function is defined only for positive values of . Therefore, the domain is:

Domain:

This function does have a domain of .

 

This is a polynomial function, which is defined for all real values of