Respuesta :

ANSWER:

Domain: (-∞, ∞)

STEP-BY-STEP EXPLANATION:

We have the following function:

[tex]f(x)=-\:9x+2\:[/tex]

The domain of a function is the set of all possible input values of the function. In this case, it would be the interval of values that x can take.

In this function, x can take any value in real numbers.

Therefore, in that case, it will be:

[tex]D=(-\infty,\infty)[/tex]