Question

Tell whether the sequence is arithmetic. If the sequence is arithmetic, write a function rule to represent it. −3, −1, 1, 3,...

Answer 1

Yes, +2

Explanation:

Well, to go from -3 to -1, you add 2. To get from -1 to 1, you add 2. To get from 1 to 3, you add 2. Since each one is +2, it is arithmetic.