Precalculus Examples

$f (x) = 3 x$ , $g (x) = 6 x - 6$ , $(g \circ f)$

Step 1

Set up the composite result function.

$g (f (x))$

Step 2

Evaluate $g (3 x)$ by substituting in the value of $f$ into $g$ .

$g (3 x) = 6 (3 x) - 6$

Step 3

Multiply $3$ by $6$ .

$g (3 x) = 18 x - 6$