Find f(g(x)) f(x)=7x g(x)=x/7

$f (x) = 7 x$ $g (x) = \frac{x}{7}$

Step 1

Set up the composite result function.

$f (g (x))$

Step 2

Evaluate $f (\frac{x}{7})$ by substituting in the value of $g$ into $f$ .

$f (\frac{x}{7}) = 7 (\frac{x}{7})$

Step 3

Cancel the common factor of $7$ .

Cancel the common factor.

$f (\frac{x}{7}) = 7 (\frac{x}{7})$

Rewrite the expression.

$f (\frac{x}{7}) = x$