Question

What is the domain and range of `f(x)=(x+2)^2-3`?

Answer 1

Refer to explanation

Explanation:

The domain is the set of all real numbers hence

`D(f)=R`

the range is

`y=f(x)=(x+2)^2-3=>y+3=(x+2)^2>=0=>y>=-3` hence

`R(f)=[-3,+oo)`