Write a Function Defined by Y = F (X) Subject $f ( x )$

Multiple Choice

Write a function defined by y = f (x) subject to the following conditions.
-The value of $f ( x )$ is four more than eight times $x$ .

A) $f ( x ) = 4 x + 8$
B) $f ( x ) = 4 x - 8$
C) $f ( x ) = 8 x - 4$
D) $f ( x ) = 8 x + 4$