U4D2 Explicit & Recursive Geometric Sequences

For each sequence, state if it is arithmetic, geometric, or neither.

2, 10, 50, 250, 1250,...

• Arithmetic

• Geometric

• Neither

Tags

CCSS.HSF.BF.A.2

For each sequence, state if it is arithmetic, geometric, or neither.

27, 30, 33, 36, 39,...

• Arithmetic

• Geometric

• Neither

Tags

CCSS.HSF.BF.A.2

For each sequence, state if it is arithmetic, geometric, or neither.

 $26,\ 14,\ 8,\ 5,\ \frac{7}{2},...$  

• Arithmetic

• Geometric

• Neither

Tags

CCSS.HSF.BF.A.2

For each sequence, state if it is arithmetic, geometric, or neither.

 $-1,\ 3,\ -9,\ 27,\ -81,...$  

• Arithmetic

• Geometric

• Neither

Tags

CCSS.HSF.BF.A.2

Determine the common ratio of the geometric sequence.

-2, 8, -32, 128

• 4

• -4

• 10

• -12

Tags

CCSS.HSF.BF.A.2

Determine the common ratio of the geometric sequence.

3, 9, 27, 81,...

• 9

• 6

• 3

• 81

Tags

CCSS.HSF.BF.A.2

Find the three terms in the sequence after the last one given.

243, 81, 27, 9, ___, ___, ___,...

• $3,\ \frac{1}{3},\ \frac{1}{9}$

• $3,\ 9,\ 27$

• $3,\ 6,\ 1$

• $3,\ 1,\ \frac{1}{3}$

Tags

CCSS.HSF.BF.A.2

Find the three terms in the sequence after the last one given.

-3, 9, -27, 81, ___, ___, ___,...

•  $-243,\ 729,\ -2187$ 

•  $243,\ 729,\ 2187$ 

•  $108,\ 117,\ 126$ 

•  $90,\ 99,\ 108$ 

Tags

CCSS.HSF.BF.A.2

Given the formula for a geometric sequence find the common ratio.

 $a_n=-4\left(-2\right)^{n-1}$  

• -4

• 4

• 8

• -2

Tags

CCSS.HSF.BF.A.2

Given the formula for a geometric sequence find the common ratio.

 $a_n=a_{n-1}\cdot6,\ a_1=3$  

• 3

• 6

• 9

• 12

Tags

CCSS.HSF.BF.A.2