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

##### 1 Answer

Jun 22, 2018

#### 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]}