$\"\"$

The function is $\"\"$ .

Write the function in vertex form.

$\"\"$ (Original function)

$\"\"$ (Group $\"\"$ and factor, dividing by $\"\"$ ) \ \

$\"\"$ (Add $\"\"$ inside the parentheses & subtract with $\"\"$ )

$\"\"$ (Write $\"\"$ as a perfect square)

$\"\"$ . $\"\"$

Vertex form of the function $\"\"$ is $\"\"$ .