Question

find f(a+2) for the given function.f(x)=$\sqrt{x - 5}$

Answer 1

$f(x)=\sqrt[]{x-5}$

put x = a+2

$\begin{gathered} f(a+2)=\sqrt[]{a+2-5} \\ f(a+2)=\sqrt[]{a-3} \end{gathered}$

so the answer is option A