Arithmetic or Geometric Sequences Identify

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.

What is the eleventh term of an arithmetic sequence in which a1 = 3 and d = 6?

• 63

• 39

• 69

• 36

What is the common ratio: 5, 25, 125, 625...

• 25

• 20

• 5

• 4

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

• Geometric Sequence

• Arithmetic Sequence

What do you call a set of numbers written in a special order by the application of a definite rule?

• Pattern

• Sequence

• Function

• Terms

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