# How do you find the domain and range of y= -9?

Oct 9, 2017

See a solution process below:

#### Explanation:

This equation states for each and every value of $x$ (the input), $y$ is equal to $9$.

There are no restrictions on the input which is also the Domain. Therefore the Domain is the set of all Real Numbers or: $\left\{\mathbb{R}\right\}$

The output, for each and every input, is always $- 9$

Therefore the Range is: $\left\{- 9\right\}$