ARITHMETIC AND GEOMETRIC SEQUENCE

Which of the following is a geometric sequence?

• 1, 2 , 3, 4, 5

• 1/2, 1/4, 1/6, 1/9

• 2, 1, 4, 2, 6

• 3, 9, 27, 81

What is the symbol for common ratio of geometric sequence?

• a₁

• a_n

• S_n

• r

Find the missing terms 2, 4, 8, , , _.

• 10, 12, 14

• 16, 32, 64

• 9, 10, 11

• 64, 80, 100

If the 4th term of a geometric sequence is 81, and the common ratio is 3, what is the first term?

• 1

• 3

• 9

• 27

What is the common ratio of the geometric sequence: 2, 6, 18, 54, . . . ?

• 3

• 4

• 5

• 6

What is the main difference between an arithmetic sequence and a geometric sequence?

• The arithmetic sequence has a constant common ratio, while the geometric sequence has a constant common difference.

• The arithmetic sequence has a constant common difference, while the geometric sequence has a constant common ratio.

• Both sequences have the same properties and characteristics.

• The arithmetic sequence is always increasing, while the geometric sequence can increase or decrease.

What does the common difference represent in an arithmetic sequence?

• The sum of the sequence.

• The ratio between consecutive terms.

• The rate at which each term increases or decreases.

• The rate at which each term is multiplied to get the next term.

Which of the following is an arithmetic sequence?

• 2, 4, 8, 16, .....

• 1, 4, 9, 16, .....

• 3, 6, 9, 12, ....

• 5, 10, 20, 40, .....

Which of the following is a geometric sequence?

• 1, 2, 4, 8, ......

• 3, 7, 11, 15, .....

• 2, 5, 8, 11, .......

• 2, 4, 6, 8, ....

In a geometric sequence, what is the ratio between consecutive terms called?

• Common difference

• Common ratio

• Product

• Sum