Question

p(x)=x^2-2x+9 find the domain of the function

Answer 1

what numbers can you enter into the function

Answer 2

any

Answer 3

correct. so how would you write that in math language?

Answer 4

dont know

Answer 5

it usually takes this form "_<x<_" where that blank spaces indicate how far back and forward you can go into the number line
we said that we can go as far back and front as we can right?
what number/symbol represents the ends of the number lines?