Question

HELP! (WILL MARK BRAINLIEST!)

Answer 1

Step-by-step explanation:

Step 1:  Identify the blanks

$f(x) = \sqrt{x-3}$ and $g(x) = 2x + 4$

f · g = $f( g( x ) )$

      = $f( 2x + 4 )$

      = $\sqrt{(2x + 4) - 3}$

      = $\sqrt{2x + 1}$

Since the g(x) is in the inside, that is what goes in first to produce the f(2x + 4).  Now we put in (2x + 4) into the x of the f(x) function.  

This produces:  $\sqrt{(2x + 4) - 3}$  

Now, we just combine like terms to get:  $\sqrt{2x + 1}$