CCSS.Math.Content.HSF.BF.A.2

What is the common ratio for the sequence:
3, 15, 75...

• 12
• 1/5
• 5

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CCSS.Math.Content.HSF.BF.A.2

Find the common ratio: -3, -9, -27, -81, ...

• r = 6
• r = -6
• r = 3
• r = -3

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CCSS.Math.Content.HSF.BF.A.2

Is the sequence arithmetic: -3, 3, -3, 3, ...

• Yes
• No

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CCSS.Math.Content.HSF.BF.A.2

5, 15, 45, 135

• Geometric sequence with a common ratio of 3
• Geometric sequence with a common ration of 1/3
• Arithmetic sequence with a common difference of 10
• Common difference of 3

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CCSS.Math.Content.HSF.BF.A.2

What is the explicit function for:
4, 7, 10, 13...

• f(n)=4(n-1)+3
• f(n)=3(n-1)+4
• f(n)=4(n-1)+13
• none of the above

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CCSS.Math.Content.HSF.BF.A.2

Which recursive formula best describes the following sequence:
3, 8, 13, 18, 23...

• a_n = (3)^n-1 ; a₁ =5
• a_n = (5)^n-1 ; a₁ =3
• a_n = a_n-1+3 ; a₁ =5
• a_n = a_n-1+5 ; a₁ =3

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CCSS.Math.Content.HSF.BF.A.2

Identify the common difference.
97, 86, 75, 64, ...

• 8
• 11
• -11
• -8

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CCSS.Math.Content.HSF.BF.A.2

The explicit formula for a sequence is a_n = 5 − 3n. What is the value of a₂₂ ?

• a₂₂ = -61

• a₂₂ = 61

• a₂₂ = -1

• a₂₂ = -51

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CCSS.Math.Content.HSF.BF.A.2

Is the sequence 2, 4, 12, 48,... geometric?

• yes
• no

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CCSS.Math.Content.HSF.BF.A.2

Find the common ratio: 4, -16, 64, -256, ...

• r = -4
• r = 2
• r = -2
• r = 4

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CCSS.Math.Content.HSF.BF.A.2