Find f(g(x)) f(x)=8x and g(x)=x/8

$f (x) = 8 x$ and $g (x) = \frac{x}{8}$

Set up the composite result function.

$f (g (x))$

Evaluate $f (\frac{x}{8})$ by substituting in the value of $g$ into $f$ .

$f (\frac{x}{8}) = 8 (\frac{x}{8})$

Cancel the common factor of $8$ .

Cancel the common factor.

$f (\frac{x}{8}) = 8 (\frac{x}{8})$

Rewrite the expression.

$f (\frac{x}{8}) = x$