Question

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

Answer 1

arithmetic

finite

Explanation:

Correct on Odyssey

Answer 2

An arithmetic series is one where something is added over and over again. A geometric series is the same except multiplication. So, in this one, we are adding 1 over and over again, so it is arithmetic. It is infinite because it never stops.