Vertex form of Quadratics
The vertex form will be
This means the vertex is (h,k), and a tells you your vertical movement from the vertex.
Remember "Quadratic Motion"
From the vertex,
Right 1, means Up 1
Right 2, means Up 4,
Right 3, means Up 9,
Left 1, means Up 1
Left 2, means Up 4
Left 3, means Up 9
so long as a is 1.