Extreme Value Theorem (EVT)

Let $f:[0,3] \to \mathbb{R}$ via $f(x) = -2x^2 + 8x$. The Extreme Value Theorem tells us that there exists $y \in [0,3]$ such that $\forall x \in [0,3]$, $f(y) \ge f(x)$. What is $y$ in this case?