Week 6 Arithmetic & Geometric Sequences

Is this sequence arithmetic, geometric, or neither?
{26, 22, 18, 14, ...}

• Arithmetic
• Geometric
• Neither

Tags

CCSS.HSF.BF.A.2

Is this sequence Arithmetic, Geometric, or Neither?
{2, 9, 7, 14, 12, 19, ... }

• Arithmetic
• Geometric
• Neither

Tags

CCSS.HSF.BF.A.2

What is the common ratio of this sequence?
{2, 10, 50, 250, ... }

• 1,250
• 5
• 10
• 50

Tags

CCSS.HSF.BF.A.2

Dividing by 12 is the same as ...

• × 12
• ÷ 1/12
• × 1/12
• + 12

Tags

CCSS.HSA.REI.A.1

What is the common difference in this sequence?
{48, 32, 16, 0, ... }

• 1/2
• 2
• -8
• -16

Tags

CCSS.HSF.BF.A.2

What is a₅ in the sequence defined as follows?
a_n = 5 ⋅ 2^(n-1) 

• a₅ = 160
• a₅ = 40
• a₅ = 10
• a₅ = 80

Tags

CCSS.HSF.BF.A.2

These are the first three terms of an arithmetic sequence:
{½,  ¾,  1,  ... }
What are the fourth and fifth terms of the sequence?

• 5/4,  7/4
• 5/4,  3/2
• 3/2,  5/2
• 3/2,  2

Tags

CCSS.HSF.BF.A.2

Create the formula for the arithmetic sequence:
2, 8, 14, ...

• a_n = 2+6n
• a_n = -6+6n
• a_n= -4+6n
• a_n = 4-6n

Tags

CCSS.HSF.BF.A.2

Create the formula for the arithmetic sequence:
-10, -3, 4, 11...

• a_n = 17-7n
• a_n = -17+7n
• a_n= -17-7n
• a_n = 17+7n

Tags

CCSS.HSF.BF.A.2

Create the formula for the arithmetic sequence:
6, 11, 16, 21...

• a_n = -1-5n
• a_n = -1+5n
• a_n= 1+5n
• a_n = 1-5n

Tags

CCSS.HSF.BF.A.2