Identifying and writing sequences

The recursive formula can only be used if you know the previous term

• True

• False

What is the next number? 1,680, 1,780, 1,880, _________

Write the next term of the sequence:

4, 9, 14, 19, ...

• 24

• 25

• 29

• 20

Given the recursive formula, find the first four terms:

a_n = 3⋅a_n-1

a₁ = 45

• 45, -135, 405, -1215

• 45, 135, 405, 1215

• -45, -135, -405, -1215

• 45, 42, 39, 36

Write a recursive formula for the sequence shown below.

1, 6, 11, 16

• a_n=a_n-1 + 5

• a_n=1−5(n-1)

• a_n=a_n-1 + 1

• a_n=5+(n-1)

Find the next term in the following sequence?

5, 10, 20, 40...

• 80

• 50

• 100

• 30

Write a recursive formula for the following sequence:

16,8, 4, 2,...

• a₁=16

  a_n=a_n-1 (2)

• a₁=16

  a_n=a_n-1 (1/2)

• a₁=16

  a_n=a_n-1 + (1/2)

• a₁=16

  a_n=a_n-1 - 8

What is the previous term for:
-6, 1, 8, 15...

• -13
• 13
• 1
• -12

Given the recursive formula below, find the first five terms.  
u₁ = 3
u_n = u_n-1 + 2
where n ≥ 2

• 3, 5, 7, 9, 11
• 5, 7, 9, 11, 13

Find the first four terms in the sequence

• 1, -2, 4, -8

• -2, -2, -2, -2

• 0, -2, -4, -6

• 0, -2, 4, -8