Answer:
Option 1.
Step-by-step explanation:
If a rational function is defined as
, then the domain of the rational function is the intersection of domains of p(x) and q(x) except those values for which q(x)=0.
The given rational function is

We need find the domain of the given function.
Here, the numerator and denominator both functions are polynomial and domain of a polynomial function is all real number.
So, domain of the given function is all real number except those values of x for which x-2=0.


Domain of f(x) = All real numbers except 2.
Domain of f(x) = (−∞, 2)∪(2, ∞)
Therefore, the correct option is 1.