# How do you find the domain and range of f(x) = -5x +4?

The Domain, or input, into the function has no constraints on the value $x$ can take. Therefore, the Domain of the $f \left(x\right)$ is the set of all Real Numbers or $\left\{\mathbb{R}\right\}$
This function is a straight linear transformation therefore the Range of the function is also the set of all Real Numbers or $\left\{\mathbb{R}\right\}$