Identify the following series as geometric or arithmetic. Also identify the series as infinite or finite.
-1 + 0 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8
arithmetic
geometric
infinite
finite
-1 + 0 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8
arithmetic
geometric
infinite
finite