Question

What is the domain of `f(x)=x^2-4x+7`?

Answer 1

`x in RR`

Explanation:

`f(x)` is a polynomial, which means its domain is defined for all real numbers. We can input any value for `x` and get an `f(x)` value. Thus,

`x in RR`

meaning `x` is defined for all real numbers, or `x` is a member of the reals.

Hope this helps!