How do you find the domain and range of $f(x) = sqrt(x-9)$ ?

Question

1503 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-04-17T00:30:17

Domain ${x:x>=9}$
Range ${y:y>=0}$

The value of $x$ cannot be less than 9, otherwise, the function would be complex ( not a real function).

How do you find the domain and range of f(x) = sqrt(x-9)f(x) = sqrt(x-9)?