Geometric Series

Question 1

The nth term of a geometric sequence is an = a1 • r n-1 , where a1 is the first term and r is the common ratio. Identify a1 and r for each geometric sequence. 1, 3, 9, 27, ... 8, 4, 2, 1, ... 4, -16, 64, -256, ...

Revolt · Accepted Answer

=: 1; =: 3; =: 8; =: 1/2; =: 4; =: -4

Question 2

r = ⇒ 3

Revolt · Accepted Answer

3

Question 3

a = ⇒ 8

Revolt · Accepted Answer

8

Question 4

r = ⇒ 1/2

Revolt · Accepted Answer

1/2

Question 5

a = ⇒ 4

Revolt · Accepted Answer

4

Question 6

r = ⇒ -4

Revolt · Accepted Answer

-4

Question 7

Which of the following is the rule for the geometric sequence 1, 3, 9, 27, . . .?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3111-06-11-05-03-task/mc001-4.jpg

Geometric Series Answers

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