f(x) = x? What is g(x)?
\f(x)
9(x)
(2.1)
O A. IX-X
Oo oo
B. ()
O g(x) = 2x2
OD -
D. OX)
![fx x What is gx fx 9x 21 O A IXX Oo oo B O gx 2x2 OD D OX class=](https://us-static.z-dn.net/files/d91/a8a95f98292891e82e99b071dddc1e88.png)