# How do you find the domain and range of F (X) = (x-2)/(x+4)?

The only domain restriction is that $x \ne - 4$
This would make the numerator $= 0$ (not allowed)
As $x$ grows larger, the $- 2 \mathmr{and} + 4$ make less difference, so the function will get closer and closer to $\frac{x}{x} = 1$, without reaching it.
So range is restricted to $F \left(x\right) \ne 1$