Question

How do I write in interval notation? f(x) = x-3 / x+2

Answer 1

Given the function:

$f(x)=\frac{x-3}{x+2}$

The domain of the rational function is all the real numbers except the zeros of the denominator

The zeros are: x = -2

so, the domain in interval notation will be:

$(-\infty,-2)\cup(-2,\infty)$