1. 12.2 – Geometric Sequences and Series

2. Arithmetic Series
Sum of Terms
Geometric Series
Sum of Terms
Arithmetic Sequences
Geometric Sequences
ADD
To get next term
MULTIPLY
To get next term

3. Vocabulary of Sequences (Universal)

4. Find the next three terms of 2, 3, 9/2, ___, ___, ___
3 – 2 vs. 9/2 – 3… not arithmetic

5. 1/2 x 9 NA
2/3

6. Find two geometric means between –2 and 54
-2, ____, ____, 54 -2 54 4 NA x
The two geometric means are 6 and -18, since –2, 6, -18, 54
forms an geometric sequence

7. -3, ____, ____, ____

8. x 9 NA

9. x 5 NA

10. *** Insert one geometric mean between ¼ and 4***
*** denotes trick question
1/4 3 NA

11. 1/2 7 x