Patterns Arithmetic and Geometric

What is the term position of 31,250 in the following geometric sequence? 2, 10, 50,...

• a₅

• a4

• a₂₀

• a₇

What is the term position of 31,104 in the following geometric sequence? 4, 24, 144,...

• a₅

• a₈

• a₆

• a₇

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

• Arithmetic

• Geometric

• Neither

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

• 1/2

• 2

• -8

• -16

Find the 10th term of this sequence:
{96, 48, 24, 12, ... }

• 3/16

• 1/2

• 6

• 3

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

• 1/2

• 2

• 12

• 24

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

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, ...

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

Identify the common difference.
97, 86, 75, 64, ...

• 8

• 11

• -11

• -8