Simple Arithmetic and Geometric Sequences

• 3700

• 3710

• 3720

• 3730

The second term is 3 and the eighth term is -21. Find the first term and common difference of the sequence.

Definition of SEQUENCE

• A set of number written following a simple rule

• A set of number written at random

Find the 22nd term of the following sequence:
5, 8, 11, ...

• 14

• 68

• 63

• 71

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

• 8

• 11

• -11

• -8

What is the 15th term of the sequence an = -3n+50

• 95

• -5

• 5

• -95

Is the sequence arithmetic, geometric, or neither:

17, 9, 1, -7, ...

• Arithmetic

• Geometric

• Neither

Create the explicit formula for the sequence: 2, 8, 14, ...

• a_n = 2 + 6n

• a_n = -6 + 6n

• a_n = 6n - 4

• a_n = 4 - 6n

Is the sequence geometric or arithmetic?
6, 18, 54...

• Arithmetic

• Geometric

• Neither

Is the sequence -4, -12, -36, -108,... arithmetic, geometric, or neither?

• arithmetic

• geometric

• neither