Question

What's the recursive rule for the arithmetic sequence described in the following list? Use the rule to find the eighth term of the sequence.

5, 9, 13, 17, 21

Answer 1

33

Step by step explanation:

Eight term of the sequence = a + 7d

where:

a= first term

d= common difference

first term = 5

common difference = 4

= 5 + 7(4)

= 5 + 28

= 33

Answer 2

33

Explanation:

T8 = A + (8 - 1) d

T8 = 5 + 7d

T8 = 5 + 7(4)

T8 = 5 + 28

T8 = 33

note : d is the common difference gotten from T2 - T1