What is the domain and range of $f(x)=sqrt(x-9)+4$ ?

Question

3282 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-12-07T11:15:02

Domain : $x >=9$ .
Range : $f(x) >=4$

Domain (value of x) : $x-9>=0 or x >=9$ . Since value under root can not be a negative number.

Range (value of f(x)) : $f(x)>=0+4 or f(x) >=4$ [Ans]

What is the domain and range of f(x)=sqrt(x-9)+4f(x)=sqrt(x-9)+4?