Find f(g(x)) f(x) = square root of x and g(x)=x-6

$f (x) = \sqrt{x}$ and $g (x) = x - 6$

Set up the composite result function.

$f (g (x))$

Evaluate $f (x - 6)$ by substituting in the value of $g$ into $f$ .

$f (x - 6) = \sqrt{x - 6}$

Remove parentheses.

$f (x - 6) = \sqrt{x - 6}$