Find the Vertex f(x)=1/4*(x+2)^2-9

$f (x) = \frac{1}{4} \cdot {(x + 2)}^{2} - 9$

Step 1

Use the vertex form, $y = a {(x - h)}^{2} + k$ , to determine the values of $a$ , $h$ , and $k$ .