What is the range of the function y = -3cosx - 1?
-4 ≤ x ≤ 4
-4 ≤ x ≤ 2
-3 ≤ x ≤ 3
-2 ≤ x ≤ 0
-4 ≤ x ≤ 4
-4 ≤ x ≤ 2
-3 ≤ x ≤ 3
-2 ≤ x ≤ 0