## Precalculus (10th Edition)

Using the formula $x=\frac{-b}{2a}$, the x coordinate of the vertex of the given function is $x=\frac{-4}{2(-1)}=\frac{-4}{-2}=2$ Thus, the y-coordinate of the vertex of the graph of the given function is \$f(2), Hence the given statement is true.