CPM Homework Help : GB8I Problem 2-51

What number is not part of the domain of $f\left(x\right)=\frac{3}{x+5}$ ? How can you tell?

Hint 1:

What $x$ -value(s) would not produce a possible output ( $y$ ) value?

Hint 2:

We cannot divide by $0$ . Therefore, what value of $x$ will make the denominator $0$ ?

Answer:

$x$ cannot equal $-5$ .