Answer: First Option

Step-by-step explanation:
Quadratic quadratic functions have the following form:

Where the point (h, k) is the vertex of the function.
For a quadratic function of the form
the vertex of the function is at the point 
In this case the function is: 
Then:

The vertex is:


Note that

Therefore the vertex is the point 
Finally we have that 
The function in vertex form is :
