# Free GRE Practice Questions

Question 1 of 1
ID: GRE-NEQ-16
Section: Quantitative Reasoning - Numeric Entry
Topics: Algebra; Functions
Difficulty level: Medium

(Practice Mode: Single selected Question » Back to Overview)

$f(x+y)=f(x)+f(y)$ for all positive integer values of $x$ and $y$. If $f(2)=4$, what is the value of $f(3)$?