Question

domain of f(x)=(x-1)^2-9
interval notation

Answer 1

Is this function ever undefined?

Answer 2

no?

Answer 3

Why so unsure?

Answer 4

well the question asked to find the vertex, x and y intercepts. found them but now need the domain and have no idea what you are talking about to be completely honest

Answer 5

I will tell you a rule, that a polynomial is defined for any real x.
Saying that if you had a polynomial P(x), then the domain of P(x)
would always be "all real numbers", which is \((-\infty,+\infty)\).

Answer 6

You can choose any polynomial that will make you smile or cry, and plug in any real number that you can or cannot think of, then you will get a defined output for this.

Answer 7

ok.