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

Is the sequence arithmetic: 17, 9, 1, -7, ...

• Yes
• No

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

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

• 8
• 11
• -11
• -8

Tags

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

Write the recursive formula for 4, 8, 12...

• a_n=a_n-1-7
• a_n=a_n-1-4
• a_n=a_n-1+3
• a_n=a_n-1+4

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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

Write a recursive rule for the arithmetic sequence 17, 1, -15, -31 . . .

• a_n = a_n-1 + 16
  a₁=17
• a_n = a_n-1 - 17
  a₁=17
• a_n = a_n-1 - 15
  a₁=17
• a_n = a_n-1 - 16
  a₁=17

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

Find an explicit rule for the nth term of the sequence.

• a_n= 7(-1)^n-1

• a_n= -7(1)^n-1

• a_n= 7(-1)ⁿ

• a_n= 7(1)^n-1

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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

Find the pattern: 29, 21, 13, 5, ...

• -10

• -9

• -8

• -7

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

Write the explicit formula for the sequence.

10, -2, -14, -26, ...

• $a_n=10\cdot\left(-\frac{1}{5}\right)^{\left(n-1\right)}$

• $a_n=-2\cdot7^{\left(n-1\right)}$

• $a_n=10-8\left(n-1\right)$

• $a_n=10-12\left(n-1\right)$

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