Question

Which of the following is an arithmetic sequence?

Answer 1

Answer: choice D

Step-by-step explanation:

An arithmetic sequence is a list of numbers with a definite pattern. If you take any number in the sequence then subtract it by the previous one, and the result is always the same or constant then it is an arithmetic sequence.

in this exampke the constant(d) is -3

Answer 2

Answer:

D is the correct answer.

Step-by-step explanation:

because the numbers are decreased by -3

 Defination: in arithmetic sequence is a list of numbers with a definite pattern. If you take any number in the sequence then subtract it by the previous one, and the result is always the same or constant then it is an arithmetic sequence.