Question

The first term of an arithmetic sequence is 9 and the common difference is –2. What is the seventh term? A. 0 B. –3 C. –1 D. –5

Answer 1

the correct answer is d -5

Answer 2

The answer is D. -5.

Explanation:

The sequence begins with 9. The sequence is reduced by 2 each step, for seven steps. Results of the seven negative steps:

7 * -2 = -14.

The difference is:

9 - 14 = -5