For the function f(x) = -2(x + 3)2 -1, identify the vertex, domain, and range. a. The vertex is (3, -1), the domain is all real numbers, and the range is y ≥ -1.
b. The vertex is (3, -1), the domain is all real numbers, and the range is y ≤ -1.
c. The vertex is (-3, -1), the domain is all real numbers, and the range is y ≤ -1.
d. The vertex is (-3, -1), the domain is all real numbers, and the range is y ≥ -1.