Question

Annika wrote a sequence and gave it the following description: "The sequence is neither increasing nor decreasing. You add 2 to the odd terms and subtract 5 from the even terms." Which of the following represents the first five terms of this sequence?

A. 1, -4, 3, -2, 5
B. 3, -5, 1, -6, 5
C. 4, -3, 6, -2, 7
D. 2, -4, 6, -8, 10

Answer 1

The first five terms of the sequence described by Annika are 1, 3, -9, -7, -14.

Step-by-step explanation:

The first term in the sequence is 1 (odd) and we add 2 to it, so the next term is 1+2=3. The second term is -4 (even) and we subtract 5 from it, so the next term is -4-5=-9. Continuing this pattern, we get the first five terms of the sequence: 1, 3, -9, -7, -14. Therefore, option B. 3, -5, 1, -6, 5 represents the first five terms of this sequence.