Geometric Sequence Introduction

Is the sequence -40, -20, -10, -5,... a geometric sequence?

• Yes

• No

Is the sequence 2.5, -10, 40, -160,... a geometric sequence?

• Yes

• No

Determine the common ratio of the geometric sequence 5, 15, 45, 135, ...

• 3

• -3

Determine the common ratio of the geometric sequence -7, 14, -28, 56,...

• 2

• -2

Solve for eighth term of the geometric sequence 2, -10, 50, -250,... 

Note: DO NOT use comma and space to separate numbers. example (-123456)

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

Which set of numbers is an example of geometric sequence?

• 2, 6, 18, 54, …

• 3_, 4, 5, 6, …

• 4, 8, 12, 16, ...

• 5, 8, 11, 14, ...