Precalculus Examples

$f (x) = - 3 {(x + 2)}^{2} - 1$

Step 1

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

$a = - 3$

$h = - 2$

$k = - 1$

Step 2

Find the vertex $(h, k)$ .

$(- 2, - 1)$

Step 3