Question

Can someone please help me on this math question? please? I'll fan and give a medal!!

Answer 1

State the domain of y = x^2

Answer 2

HI!!

Answer 3

you can square any number, so unless you make your own restriction the domain would be \[\mathbb{R}\]

Answer 4

the domain would just be R? no numbers?

Answer 5

@mathmate could you help me?

Answer 6

yes, the domain is simply R

Answer 7

So for the answer I just put R? No steps or anything?

Answer 8

@Fifciol

Answer 9

I think so

Answer 10

R means all real numbers. Yes, the domain of y=x^2 is all real numbers, usually written as \(]-\infty,+\infty[\), or simply R.

Note that all polynomials with real coefficients have \(]-\infty,+\infty[\), or R as domain. Since x^2 is a 2nd degree polynomial with one single term and real coefficient, the domain is no exception, i.e. R.