Practice 2

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

• Yes
• No

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CCSS.HSF.BF.A.2

Find the common difference: -18, -23, -28, -33, ...

• d = -5
• d = 5
• d = -3
• d = 3

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CCSS.HSF.BF.A.2

Find the common difference: 29, 21, 13, 5, ...

• d = -10
• d = -9
• d = -8
• d = -7

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CCSS.HSF.BF.A.2

Write the explicit rule for the arithmetic sequence
12, 10, 8, 6, ...

• a_n = 12n - 14
• a_n = 2n - 14
• a_n = -2n + 14
• a_n = -12n + 14

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CCSS.HSF.BF.A.2

Write the explicit rule for the arithmetic sequence
9, 13, 17, 21, ...

• a_n = -4n + 5
• a_n = -9n + 14
• a_n = 9n - 5
• a_n = 4n + 5

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CCSS.HSF.BF.A.2

What is a formula for the nth term in the sequence 12, 20, 28, ...?

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CCSS.HSF.BF.A.2

What is a formula for the nth term in the sequence -4, -9, -14, ...?

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CCSS.HSF.BF.A.2

-11, -7, -3, 1, 5, ...
Write the recursive rule.

• a₁ = 5; a_n = a_n-1 +4
• a₁ = -11; a_n-1 = a_n + 4
• a₁ = -11; a_n = a_n-1 +4
• a₁ = -11; a_n = a_n-1 - 4

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CCSS.HSF.BF.A.2

11, -7, -3, 1, 5, ...
Find n if t_n = 45

• n = 4
• n = 14
• n = 15
• n = 16

Tags

CCSS.HSF.BF.A.2

-11, -7, -3, 1, 5, ...
Write the recursive rule.

• a₁ = 5; a_n = a_n-1 +4
• a₁ = -11; a_n-1 = a_n + 4
• a₁ = -11; a_n = a_n-1 +4
• a₁ = -11; a_n = a_n-1 - 4

Tags

CCSS.HSF.BF.A.2