Question

Consider the sequence -9, -5, -1, 3, 7,..

1) Is this sequence arithmetic, geometric, or neither?
How can you tell?
2) What is the first term of the sequence?
3) What is the sequence generator?

Answer 1

1) The sequence is arithmetic as the same value is added each time (there is a common difference between terms).

2) First term of the sequence = -9

3) sequence generator = + 4

Explanation:

1) The sequence is arithmetic as the same value is added each time (there is a common difference between terms).

2) First term of the sequence = -9

3) sequence generator = + 4