Review

Sequences

100

Find the 13 term of the following sequence:

a_n = -2n + 1

-25

200

Find the eighth term of the following sequence:

a_n = 4(-3)^n-1

-8,748

300

Find the fourth term of the following sequence:

a_n = 8(1/2)^(n - 1)

1

400

Find the sum of the following sequence:

-5, -15, -45, -135, ... S₈

-16,400

500

Which two sports does Mr. Lochow coach?

Basketball & Baseball

Arithmetic Sequences

100

Write an explicit formula for the following arithmetic sequence and find the 43rd term.

12, 14, 16, 18, ...

a_n = 2n - 2

96

200

Write an explicit formula for the following arithmetic sequence and find the 33rd term.

19.5, 19.9, 20.3, 20.7,...

a_n = 0.4n + 19.1

32.3

300

Write an explicit formula for the following arithmetic sequence and find the 23rd term.

2, 13, 24, 35, ...

a_n = 11n - 9

244

400

What is the #1 pop according to Mr. Michalak?

Dr. Pepper

500

Write an explicit formula for the following arithmetic sequence and find the 43rd term.

45, 48, 51, 54, ...

a_n = 3n + 42

171

Geometric Sequences

100

Write an explicit formula for the following geometric sequence and then find the tenth term. 

2, 4, 8, ...

a(n)=2*2^(n-1)

1024

200

Write an explicit formula for the following geometric sequence and then find the tenth term. 

-3, 9, -27, ...

a(n) = -3 * (-3)^(n-1)

59,049

300

Write an explicit formula for the following geometric sequence and then find the seventh term. 

-3, -12, -48...

a(n) = -3*4^(n-1)

-12,288

400

What is Mr. Michalak & Mr. Lochow's combined age?

53

500

Write an explicit formula for the following geometric sequence and then find the tenth term.  

1/4, 1/2, 1, ...

a(n) = 1/4*2^(n-1)

128

Arithmetic OR Geometric

100

Is the following sequence arithmetic, geometric, or neither? Then find the next two terms.

9, 3, 1, 1/3, ....

Geometric; 1/9, 1/27

200

Is the following sequence arithmetic, geometric, or neither? Then find the next two terms.

1, 0, -2, -5, ....

neither

300

Is the following sequence arithmetic, geometric, or neither? Then find the next two terms.

-3, 2, 7, 12, ....

Arithmetic; 17, 22

400

Is the following sequence arithmetic, geometric, or neither? Then find the next two terms.

1, -2, -5, -8, ....

Arithmetic; -11, -14

500

Which country led the Winter Olympics in medals?

Norway