Final answer:
The vertex of the function y = (x - 2)^2 - 1 is (2, -1).Correct option is A.
Step-by-step explanation:
The given function is y = (x - 2)^2 - 1. To find the vertex of the parabola represented by this function, we need to locate the highest or lowest point on the graph.
The vertex of a parabola in the form y = (x - h)^2 + k is at the point (h, k).
In this case, the vertex is (2, -1). Therefore, the correct answer is A. (2, -1).