Arithmetic & Geometric Sequences Review

The sequence -1, 5, 11, 17, 23 ... is _______________________

• Arithmetic

• Geometric

• Both

• Neither

Tags

CCSS.HSF.BF.A.2

Given the sequence 2 , 8 , 14 , 20 , 26 , … What is the common difference ?

• 2

• 4

• 6

• 8

• 32

Tags

CCSS.HSF.BF.A.2

Which explicit formula is represented by the graph?

• $a_n=-2+3\left(n-1\right)$

• $a_n=3-2\left(n-1\right)$

• $a_n=2+3\left(n-1\right)$

• $a_n=-3+2\left(n-1\right)$

Tags

CCSS.HSF.BF.A.2

What is the FIRST term in the arithmetic sequence __ , 9 , __ , 33 , 45

• 57

• 3

• -3

• 6

• 21

Tags

CCSS.HSF.BF.A.2

The sequence 3, 12, 48, 144,... is _____________________

• Arithmetic

• Geometric

• Both

• Neither

Tags

CCSS.HSF.BF.A.2

Choose all of the geometric sequences

• 1, 2, 4, 8, 16,....

• 400, 200, 100, 50, 25,....

• 100, 400, 700, 1000,.....

• 5, -15, 45, -135, ......

Tags

CCSS.HSF.BF.A.2

Identify the first term

 $a_1$  and difference in the sequence: 150, 105, 60, 15,....

•  $a_1$  = -45,  d = 150
  

•  $a_1$  = 150, d= -45

•  $a_1$  =150, d = 45

•  $a_1$  = 15, d = 45

Tags

CCSS.HSF.BF.A.2

What is the common ratio of this sequence?

{2, 10, 50, 250, ... }

• 1,250

• 5

• 10

• 50

• 2

Tags

CCSS.HSF.BF.A.2

What is the 11th term of the sequence  $a_n=\ 20\ -\ 2\left(n-1\right)$  

• 40

• -20

• 2

• 0

• None of the above

Tags

CCSS.HSF.BF.A.2

Find the 20th term of the sequence 5, 8, 11, ...

• 62

• 65

• 71

• 75

Tags

CCSS.HSF.BF.A.2