Question

How do you find the domain and range of `f(x) = x^2+3`?

Answer 1

`x inRR,y in[3,oo)`

Explanation:

`f(x)=x^2+3" is defined for all real values of x"`

`"domain is "x inRR`

`(-oo,oo)larrcolor(blue)"in interval notation"`

`"the vertex of "x^2+3" is "(0,3)`

`"since "a>0" it is a minimum turning point " uuu`

`"range is "[3,oo)`
graph{x^2+3 [-10, 10, -5, 5]}