The table describes the quadratic function h(x).


x h(x)
−3 1
−2 −2
−1 −3
0 −2
1 1
2 6
3 13

What is the equation of h(x) in vertex form?
h(x) = (x − 1)2 + 1
h(x) = (x − 1)2 + 3
h(x) = (x + 1)2 − 1
h(x) = (x + 1)2 − 3