23. Tell whether the sequence is arithmetic. If it is, what is the common difference? (1

-15, - 9, - 3, 3,

Oyes; 3

Oyes; 5

Oyes; 6

Ono

Answer: O Yes; 6

Yes it is Arithmetic; the difference is 6

Step-by-step explanation:

If the numbers keep changing by the same value being added or subtracted, it is Arithmetic.

-15 - (-9) = - 6 - 9 - (-3) = - 6 - 3 - 3 = - 6

"Same difference" as the saying goes!