Question

How do you find the domain of `f(x)=x^2-4`?

Answer 1

`"domain is " x inRR`

Explanation:

`"this function is defined for all real values of x"`

`rArr"domain is " x inRR`

`"or in interval notation "`

`(-oo,+oo)`
graph{x^2-4 [-10, 10, -5, 5]}