Arithmetic Geometric Sequences

Which of the following best describes this sequence?

• A geometric sequence with a common difference of 3.

• An arithmetic sequence with a common difference of 3.

Tags

CCSS.HSF.BF.A.2

The first three terms of an a sequence are 3, 11, and 19. Which formula represents the sequence?

• a_n = 8 + 3(n-1)

• a_n = 8(3)^n-1

• a_n = 3 + 8(n-1)

• a_n = 3 + 8n

Tags

CCSS.HSF.BF.A.2

What is the common ratio of this geometric sequence?

500, 200, 80, 32, ...

• -5/2

• -2/5

• 2/5

• 5/2

Tags

CCSS.HSF.BF.A.2

What is the tenth term in the arithmetic sequence:

12, 19, 26, 33, ...

Hint: Find the common difference and then either continue the pattern or write and use an explicit formula.

• 47

• 61

• 75

• 96

Tags

CCSS.HSF.BF.A.2

What is the first term of the sequence below?

• 3

• 6

• 9

• 12

Tags

CCSS.HSF.BF.A.2

Tags

CCSS.HSF.BF.A.2

• 530

• 685

• 755

• 820

Tags

CCSS.HSF.BF.A.2

Write an explicit formula for the sequence 45, 40, 35, 30, ...

Tags

CCSS.HSF.BF.A.2

Write an explicit formula for the sequence 1.5, 2.0, 2.5, 3.0, ...

Tags

CCSS.HSF.BF.A.2

Write an explicit formula for the sequence -9, -7, -5, -3, ...

Tags

CCSS.HSF.BF.A.2