Answer:
Up 3 over 1
Step-by-step explanation:
The domain is the set of values of the x-axys.
As per your description of the function, it goes from negative infinity to positive infinity.
Factories both equations:
5(x - 4) / (x + 2)(x - 4)
Then take out the common brackets:
5 / x + 2
Minus 2 from both sides:
3 / x
If you are looking for the greatest common factor of the numerator and denominator, the answer would be (x - 4)