ACT® Math

Free Version

Upgrade subject to access all content

Moderate

Composition of Functions

ACTMAT-YLVG4K

If $f(x) = 3x-4$ and $g(x) = \sqrt { x-2 } $, then $g(f(x) = ?$

A

$ 3\sqrt { x-2 } -4 $

B

$ 3\sqrt { x-6 } $

C

$ \sqrt { 3x-4 } -2 $

D

$ \sqrt { 3x-6 } $

E

$ 3x\sqrt { x-2 } -4 $