The line is a dotted line, which means it is not a greater than or equal to symbol. Because of it, (0,-1) would not be considered a solution to the inequality. Hope that helps!
(0,-1) this is because it is not in the overlapping shaded purple area and it isn’t on the bold line either. if the answer is on the dotted line or in the only blue or only red area, it can’t be the answer
