Sequences Review

Is the sequence arithmetic: 78, 785, 7855, 78555, ...

• Yes
• No

Find the next three terms in the arithmetic sequence: -3, -8, -13, -18, ...

• -20, -24, -28
• -21, -25, -29
• -23, -28, -33
• -24, -29, -32

Determine the common difference of this sequence

1, 3⁄4, 1⁄2, 1⁄4, 0, ....

• d=-1
• d=-3⁄4
• d=-1⁄2
• d=-1⁄4

Tags

CCSS.HSF.BF.A.2

Is the sequence geometric or arithmetic?
6, 18, 54...

• Arithmetic
• Geometric
• Neither

What is a₅ in the sequence defined as follows?
a_n = 5 ⋅ 2^(n-1) 

• a₅ = 160
• a₅ = 40
• a₅ = 10
• a₅ = 80

Given the recursive formula, find the first four terms:
a_n = a_n-1 + 5
a₁ = -16

• -16, -21, -26, -31
• 5, -11, -27, -43
• -16, -80, -500, -200
• -16, -11, -6, -1

Write the first four terms for: 
a₁ = 3, d = 4

• 3, 12, 48, 192
• 3, 7, 11, 15
• 1, 5, 9, 13
• 3, 4, 5, 6

For the sequence, decide if its arithmetic or geometric:
2, 4, 8, 16

• arithmetic
• geometric

Given the sequence:
 25, 21, 17, 13,...
Write the explicit equation that models the sequence.

• a_n = 4n + 29
• a_n = -4n + 25
• a_n = -4n + 29
• a_n = 4n + 25

Tags

CCSS.HSF.BF.A.2

Identify the common difference. 
10, 20, 30, 40, ...

• 5
• 10
• 15
• 20

Tags

CCSS.HSF.BF.A.2