Staar Algebra Arithmetic and Geometric Sequences Writing Rules

What is the 38th term of this sequence?
{26, 22, 18, 14, ... }

• -4

• 10

• -122

• 174

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

• 1,250

• 5

• 10

• 50

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

• 1/2

• 2

• -8

• -16

Is this sequence Arithmetic, Geometric, or Neither?
{14, 22, 30, 38, .. }

• Arithmetic

• Geometric

• Neither

What is the common ratio in this sequence? 
{96, 48, 24, 12, ... }

• 1/2

• 2

• 12

• 24

Which lists four consecutive terms of an arithmetic sequence?

• 1, 4, 9, 16, ...

• 3, 10, 17, 24, ...

• 1, 2, 4, 8, ...

• -5, 6, 10, 13, ...

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

• a₅ = 160

• a₅ = 40

• a₅ = 10

• a₅ = 80

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

What are the first three terms of the sequence defined by the following equation?
a_n = 7 + (n - 1)5

• 7, 35, 175

• 7, 2, -3

• 12, 17, 22

• 7, 12, 17

An auditorium has 80 rows of seats and the number of seats per row increases at a constant rate.  If there are 32 seats in the 8th row, and 68 seats in the 20th row, how many seats are in the last row?

• 240

• 248

• 272

• 320