8. What is the 10th term of the sequence -1, 1, -1, 1, -1, 1, .. . .. A. -1 B. 1 C. O D. none of these _9. An arithmetic sequence has a 10th term of 17 and a 14th term of 30. Find the common difference. A. d = B. C. D. _10. If one term in the arithmetic sequence is a21 = - 17 and the common difference is d = - 3. Find a1. A. 43 B. -43 C. 34 D. -34 11. Find the first 5 terms of the sequence defined by A. 2, 5, 8, 11, 14 B. 3, 6, 9, 12, 15 C. 2, 4, 6, 8, 10 D. 3, 5, 7, 9, 11 12. What is the 7" term of the sequence whose nth an = term is 72+ 1' A. B. C. D. 13. What is the n term of the arithmetic sequence 7, 9, 11, 13, 15, 17, ....? A. 4n + 4 B. 4n + 3 C. n + 2 D. 2n + 5 14. What are the first 5 terms of the sequence given the terms as: A. 10, 7, 4, 1, -2 B. 7, 4, 1, -2, -5 C. 8, 5, 2, -1, -4 D. 9, 6, 3, 0, -3 15. Which of the following is the n" term of the sequence 2, 4, 8, 16, 32, . . . . A. an = n B. an = 20 C. an = (n - 1)2 D. an = 2n -1 16. Find the 5th term of the sequence given by the rule an = 2" A. 30 B. 31 C. 32 D. 33 17. What is the n" term of the arithmetic sequence A. an = B. an = C. an = " D. an = 18. Find the next 4 terms of the sequence given the formula an = a(n+ 1) + 4. A. 3, 7, 11, 15 B. 6, 10, 14, 18 C. 5, 9, 13, 17 D. 4, 8, 12, 16 Activate