Sequences & Series - Part Two (S&S 2a)

Identify the common difference. 97, 86, 75, 64, (a)  

• 8
• 11
• -11
• -8

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CCSS.HSF.BF.A.2

The sequence 2, 4, 12, 48,... is _______.

• arithmetic

• geometric

• neither arithmetic nor geometric

• both arithmetic and geometric

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CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.2

What is the common ratio for the sequence:
28, 14, 7, 3.5...

• 2
• 1/2
• -14
• -7

Tags

CCSS.HSF.BF.A.2

Is this sequence Arithmetic, Geometric, or Neither?

{14, 22, 30, 38, .. }

• Arithmetic, d = 8

• Geometric, r = ⅛

• Neither

Tags

CCSS.HSF.BF.A.2

• ²

• ¹⁰

• ²⁰

• 2ⁿ

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CCSS.HSF.BF.A.2

• 3

• -2

• 2

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CCSS.HSF.BF.A.2

What is the common difference in the sequence -7, -5, -3, -1, … ?

• 1/2

• -1/2

• 2

• -2

Tags

CCSS.HSF.BF.A.2

What is the 7th term in the sequence

7, 11, 15, … ?

• 30

• 31

• 32

• 33

Tags

CCSS.HSF.BF.A.2

Tags

CCSS.HSF.BF.A.2

Match the following explicit rules to the sequence they each describe:

• 17, 13, 9, 5, ...

• f(n)= 17 - 4(n-1)

• 13, 17, 21, 25, ...

• f(n)= 4 + 13(n-1)

• 4, 17, 30, 43, ...

• f(n) = -4 - 17(n-1)

• -4, -21, -38, -55, ...

• f(n)= 13 + 4(n-1)

Answer explanation

Remember... An explicit rule is:

"First Term Common Difference (n-1) DONE"

Tags

A.12(D) TEKS