Determine the equation of the graph and select the correct answer below.
y = (x + 1)2 + 3
y = (x + 1)2 − 3
y = (x − 1)2 − 3
y = (x − 1)2 + 3

Using vertex form we can translate the graph of x^2 where we want it. In this case, the parent function of the quadratic equation has been moved right one and three down. We can use the vertex form of a parabola to find the correct equation:

where (x,h) is the vertex.
Subbing in the points, we can find that the equation of the parabola is :