Pretest Geometric Sequence

Find the common ratio of the geometric sequence

2, 4 , 8 ,16, .....

• A. 2

• B. 4

• C. 8

• D. 16

What is the missing term of the geometric sequence

3 , ____, 48 , 192 , ... ?

• 4

• 12

• 36

• 144

Given the sequence : 8 , 16, 32 , 64 , _____, what is the next term?

• A. 148

• B. 138

• C. 128

• D.118

Given -4,-8,-16, -32,-64 , what is the common ratio?

• A. 2

• B. 4

• C. 6

• D. 8

It is a sequence in which each term after the first can be obtained by multiplying the preceding term by a fixed constant called the common ratio denoted by r.

• A. Arithmetic Sequence

• B.Geometric Sequence

• C. Both arithmetic sequence and geometric sequence

• None of them

B. Click G if the given is a geometric sequence , Click A if it is arithmetic and click N if it is not a sequence.

1) 1, 3 , 9 , 27 , 81, ...

• G

• A

• N

Click G if the given is a geometric sequence , Click A if it is arithmetic and click N if it is not a sequence.

2 ) -4 , 8 , -16 , 32 , -64 , ...

• G

• A

• N

Click G if the given is a geometric sequence , Click A if it is arithmetic and click N if it is not a sequence.

3) 1 , 4 , 16 , 64 , ...

• G

• A

• N

Click G if the given is a geometric sequence , Click A if it is arithmetic and click N if it is not a sequence.

4) 20 , 13 , 6 , -1 , -8 , ...

• G

• A

• N

Click G if the given is a geometric sequence , Click A if it is arithmetic and click N if it is not a sequence.

5 ) -5 , 0 , 5 , 10 , 15 , ...

• G

• A

• N