Question

Which of the following is the explicit formula for the sequence below?. . 8, 11, 14, 17, .... . A. an = 8 + 3n. B.an = 8 + (n - 1)3. C.an = 3 + (n - 1)8. D.an = 3 + 8n

Answer 1

8, 11, 14, 17, . . . is an arithmetic sequence with a = 8 and d = 3
an = a + (n - 1)d = 8 + (n - 1)3

Answer 2

Out of the following choices, the explicit formula for the sequence 8,11,14 & 17 is an=8+(n-1)3. The correct answer will be B.