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

Find the next 3 terms in this geometric sequence 5,-10,20,-40

• -80,160,-320
• 160,-320,640
• 80,-160,320
• -160,320,-640

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

The next two terms of the sequence 4,7,10,13 are

• 16 and 19
• 15 and 19
• 16 and 18
• 15 and 18

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

Create the explicit formula for the sequence:
2, 8, 14, ...
(Hint:  a_n = dn + a_{0 . . .} or . . . a_n = a₀ + dn)

• a_n=2+6n
• a_n=-6+6n
• a_n=6n-4
• a_n=4-6n

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

Write a recursive rule for the sequence a_n = 17 + (n-1)(-16)

• a₁ = 17
  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

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

Choose the correct answer from the given four options:
In an AP if a = –7.2, d = 3.6, a_n = 7.2, then n

• 2
• 3
• 4
• 5

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

The 10th term of the AP: 5, 8, 11, 14, ... is

• 32

• 35

• 38

• 25

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

Write a sequence to represent the number of smiley faces in each group. Select all that apply.

•  $a_n=4+\left(n-1\right)2$

• $f\left(n\right)=2+4\left(n-1\right)$

• $f\left(n\right)=4+2\left(n-1\right)$

• $a_n=a_{n-1}+2$

• $a_n=a_{n-1}-2$

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

Which of the following recursive formulas represents the given sequence.

7, 14, 28, 56, 112, ...

• $a_1=7$ , $a_n=a_{\left(n-1\right)}+7$

• $a_1=7$ , $a_n=a_{\left(n-1\right)}\cdot7$

• $a_1=7$ , $a_n=a_{\left(n-1\right)}\cdot2$

• $a_1=7$ , $a_n=a_{\left(n-1\right)}+14$

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

Write the explicit formula for the sequence.

216, 72, 24, 8, ...

• $a_n=216\cdot\left(\frac{1}{3}\right)^{\left(n-1\right)}$

• $a_n=8\cdot3^{\left(n-1\right)}$

• $a_n=216-144\left(n-1\right)$

• $a_n=216\cdot3^{\left(n-1\right)}$

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

Which term is 12,288 in the sequence given by: 3, 6, 12, 24, ...

• 11

• 12

• 13

• 14

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