The sequence is arithmetic.
To find the common difference, we subtract each term from its previous term:
12 - 19 = -7
5 - 12 = -7
-5 - 5 = -10
The common difference is -7.
Tell whether the sequence is arithmetic, what's the common diff.
19, 12, 5, -5
No
1/7
7
-7
1 answer