So basically half of this does not require much work. Im going to give you an algebra worksheet thats blank with all the questions. I have a word key with all the work and anwsers provided. All you have to do is copy and paste them on to the blank sheet. The other half is just two algebra questions about sequencies and series that do require solving. All info below 🙂
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unit_4_sample_work.pdf
unit_4_sample_work_key.pdf
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Name
Class
Date
Algebra 2B Sample Work – Unit 4: Sequences and Series
Chapter 6
Lesson 9-1. Determine whether the formula is recursive or explicit. Then state the first five terms of the
sequence.
1. a1 = 2; an = an-1 – 3
th
Lesson 9-2. Find the 24 term of the sequence.
2.
43, 41, 39, 37, . . .
th
Lesson 9-3. Find the 8 term of the sequence.
3. 2, 6, 18, . . .
5. Write an explicit formula for the geometric sequence
4.
1 1
, , 3, . . .
12 2
a1 ? ?27, r ?
1
3
Lesson 9-4. Find the sum of the arithmetic series
.
6. 4 + 11 + 18 + . . . + 53
Lesson 9-5. Evaluate the sum of the geometric series.
7. 243 – 81 + 27 – 3 + . . . ; n = 8
8.
4 ? 2 ?1?
1
? …
2
…
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