Identify Arithmetic or Geometric Sequences

What is the explicit rule for the geometric sequence: 11, 22, 44, 88...

• u_n = 2(11)^n-1

• u_n = 11(2)

• u_n = 11(2)^n-1

What is the 38th term of this arithmetic sequence? {26, 22, 18, 14, ... }

• -4

• 10

• -122

• 174

Write the explicit formula for the sequence.

Write the explicit formula for the sequence.

An ______________sequence is a sequence of numbers in which the difference between any two consecutive terms is a constant. 

• Geometric Sequence

• Arithmetic Sequence

Which of the following is not an arithmetic sequence?

• 1/2, 1, 3/2, 2

• 11, 14, 17, 20

• 2, 4, 8, 16

• 5, 2, -1, -4

Identify the common difference of the sequence below:

• -1.2

• 1.3

• 1.2

• -1.3

Identify the next three terms of the sequence below:

• -17, -21, -25

• 17, 21, 25

• 18, 22, 26

• -18, -22, -26

What kind of sequence is the pattern 400, 200, 100, 50, 25, ...?

• Arithmetic

• Geometric

• Neither

A _____________sequence is a sequence of numbers in which the ratio between any two consecutive terms is a constant. 

• Geometric Sequence

• Arithmentic Sequence