Question

What is the common difference of the arithmetic sequence?

7,2, -3, -8. - 13....
A)
-20
B)
--5
5
D)
20

Answer 1

Answer: -5

Explanation: The common difference is the difference between each of the terms in the sequence. Notice that to get from 7 to 2, we must subtract 5. In the same way, to get from 2 to -3, we must subtract 5.

So -5 is your common difference.