Sequences and Sigma Notation

Find the sum for the following series. 

• 44
• -162
• -682
• 324

Evaluate the sum

• no sum exists
• 5
• 10
• 20

Find the missing terms of the arithmetic sequence:
145, ___, ___, ___, 205

• 160, 175, 190
• 165, 185, 195
• 155, 165, 175
• 190, 175, 160

Write the nth term formula:  5 + 11 + 17 + 23 + … + 35

• t(n) = 5 + 6(n – 1) 
• t(n) = 5(6)^n-1
• t(n) = 5 + 6n 
• t(n) = -1 + 6(n - 1)

Identify the common difference.
97, 86, 75, 64, ...

• 8
• 11
• -11
• -8

Is this arithmetic, geometric or neither. 
30,39,48,57,66,...

• Arithmetic
• Geometric
• Neither
• There's a difference???

You have $10 in you bank account.  It doubles every month.  How much money will you have after 5 months?

• $50
• $35
• $320
• $250

Find the sum of this series:

• 8
• 20
• 22
• 32

Identify the common ratio.
3, 9,27,81, ...

• 6
• 5
• 4
• 3

A common difference is..........

• Things that are different between people
• A common factor (GCF)
• A number that is added each time in an arithmetic sequence to create new terms
• A number that is multiplied each time in a geometric sequence to create new terms