Algebra Examples

$f (x) = x + 1$ $g (x) = 2 x + 4$

Step 1

Set up the composite result function.

$f (g (x))$

Step 2

Evaluate $f (2 x + 4)$ by substituting in the value of $g$ into $f$ .

$f (2 x + 4) = (2 x + 4) + 1$

Step 3

Add $4$ and $1$ .

$f (2 x + 4) = 2 x + 5$