Question

3√
domain n range

Answer 1

domain: Dom = {x >= 4}
Range: Range = {f(x) >=0}

Answer 2

\(f(x)\) can only be positive since \(\sqrt{x-4}\geq0\). Since \(x-4\geq0\rightarrow x\geq4\) that's your domain.

Answer 3

so 4 then infinity sign ?

Answer 4

[4,infinity) domain, range is [0,infinity)