### Home > CC4 > Chapter 2 > Lesson 2.2.1 > Problem2-51

2-51.

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

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

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

x cannot equal −5.