infinite algebra 2 - unit 5 day 11 warm...

2
©y M2Z0d1M7N xKGuLtbaU wSHo_f\tfwEaTrQeU MLXLkCf.[ e bAZljl[ UrmiygShRtLsE qrje^sgeZrUvieSdn.R u MMkaOdDes ywUiEtzhb PITnAfFi[nOi_taef mAzlVgQeYberkav s2u. Worksheet by Kuta Software LLC Math 3 Honors Unit 5 Day 11 Warm Up ©^ _2j0X1X7X EKnu]ttaR WSfoefutwwoaNrBer YLRLvCO.K s ]APlQlu Prci]gxhztusk orae_s^eyrnvOeEdJ. Determine if the sequence is geometric. If it is, find the common ratio, the term named in the problem, and the explicit formula. 1) -2, 4, -8, 16, ... Find a 11 2) 10, 8, 6, 4, ... Find a 11 3) -2, -4, -8, -16, ... Find a 9 4) 3, -6, 12, -24, ... Find a 10 5) 4, -8, 16, -32, ... Find a 9 6) -3, 9, -27, 81, ... Find a 11 Find the missing term or terms in each geometric sequence. 7) ..., 1, ___, 25, ... 8) ..., 3, ___, 108, ... 9) ..., -4, ___, -16, ... 10) ..., 2, ___, 50, ...

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©y M2Z0d1M7N xKGuLtbaU wSHo_f\tfwEaTrQeU MLXLkCf.[ e bAZljl[ UrmiygShRtLsE qrje^sgeZrUvieSdn.R u MMkaOdDes ywUiEtzhb PITnAfFi[nOi_taef mAzlVgQeYberkav s2u.

Worksheet by Kuta Software LLC

Math 3 Honors

Unit 5 Day 11 Warm Up©^ _2j0X1X7X EKnu]ttaR WSfoefutwwoaNrBer YLRLvCO.K s ]APlQlu Prci]gxhztusk orae_s^eyrnvOeEdJ.

Determine if the sequence is geometric. If it is, find the common ratio, the term named in theproblem, and the explicit formula.

1) -2, 4, -8, 16, ...Find a

11

2) 10, 8, 6, 4, ...Find a

11

3) -2, -4, -8, -16, ...Find a

9

4) 3, -6, 12, -24, ...Find a

10

5) 4, -8, 16, -32, ...Find a

9

6) -3, 9, -27, 81, ...Find a

11

Find the missing term or terms in each geometric sequence.

7) ..., 1, ___, 25, ... 8) ..., 3, ___, 108, ...

9) ..., -4, ___, -16, ... 10) ..., 2, ___, 50, ...

©B H2B0V1Y7N PKZu_thaD \SIomfrtWwoakryeF YLxLDCi.w M zAvlnlT EreilgghqtSsW CrTe^s_ehrKvneUdS.B k iMOabdQeR AwdiltnhZ TIunCfUijnxiRtKe\ OAcldgpeIbCrHaH T2n.

Worksheet by Kuta Software LLC

Math 3 Honors

Unit 5 Day 11 Warm Up©H S2b0J1\7X eKcuXt]aj jSToRfqtJwAazr^eA qLmLGCS.T q XATlXlp \rniagLhvtgsW srxeus[enrlvfeidC.

Determine if the sequence is geometric. If it is, find the common ratio, the term named in theproblem, and the explicit formula.

1) -2, 4, -8, 16, ...Find a

11

Common Ratio: r = -2a

11 = -2048

Explicit: an = -2 × (-2)n - 1

2) 10, 8, 6, 4, ...Find a

11

Not geometric

3) -2, -4, -8, -16, ...Find a

9

Common Ratio: r = 2a

9 = -512

Explicit: an = -2 × 2

n - 1

4) 3, -6, 12, -24, ...Find a

10

Common Ratio: r = -2a

10 = -1536

Explicit: an = 3 × (-2)n - 1

5) 4, -8, 16, -32, ...Find a

9

Common Ratio: r = -2a

9 = 1024

Explicit: an = 4 × (-2)n - 1

6) -3, 9, -27, 81, ...Find a

11

Common Ratio: r = -3a

11 = -177147

Explicit: an = -3 × (-3)n - 1

Find the missing term or terms in each geometric sequence.

7) ..., 1, ___, 25, ...

5

8) ..., 3, ___, 108, ...

18

9) ..., -4, ___, -16, ...

-8

10) ..., 2, ___, 50, ...

10