I need to determine the domain of each function.
If you answer can you tell me how you did it?
look at the denominator ...
are you familiar with the rule that says division by 0 is undefined?
if , what would be the value of the denominator?
so ... what does that tell you cannot be equal to ?
domain is the set of all x-values that can be input into a function without breaking certain rules ... division by 0 is one of those rules that cannot be broken.