Question

p(x)=\[x ^{2}\]-2x+9
x|x is a real number and x≠9}
{x|x is a real number}
{x|x is a real number and x>0}
{x|x is a real number and ≠0}

Answer 1

\[p(x) = x^2 - 2x +9\]

What are we trying to find about this?

Answer 2

The domain of p.

Answer 3

The domain is what values of x are valid.

Answer 4

Do you see any reason why a particular x value wouldn't be allowed?

Answer 5

Ok so then {x|x is a real number} is correct?

Answer 6

Correct.