Precalculus Examples

$D (x) = \frac{1}{36} {(x - 60)}^{2} - 100$

Step 1

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

$a = \frac{1}{36}$

$h = 60$

$k = - 100$

Step 2

Find the vertex $(h, k)$ .

$(60, - 100)$

Step 3