Arithmetic and Geometric Sequences

Is this an Arithmetic sequence? 5, 4.25, 3.5, 2.75

• Yes
• No

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.IF.A.3

CCSS.HSF.LE.A.2

The next two terms of the sequence 4,7,10,13 are

• 16 and 19
• 15 and 19
• 16 and 18
• 15 and 18

Tags

CCSS.HSF.BF.A.2

Identify the common difference.

15, 11, 7, 3, ...

• 6

• 5

• 4

• - 4

Given the sequence:

25, 21, 17, 13,...

Write the explicit formula for this sequence. (Hint: simplify your equation)

• a_n = 4n + 29

• a_n = -4n + 25

• a_n = -4n + 29

• a_n = 4n + 25

Given the sequence:
 25, 21, 17, 13,...
Write the explicit equation that models the sequence.  (Hint:  Simplify your equation.)

• a_n = 4n + 29
• a_n = -4n + 25
• a_n = -4n + 29
• a_n = 4n + 25

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.2

Write a recursive rule for the sequence 17, 1, -15, -31 . . .

• a_n = a_n-1 + 16,

  a₁ =17

• a_n = a_n-1 - 17

  a₁ =17

• a_n = a_n-1 - 15

  a₁ =17

• a_n = a_n-1 - 16

  a₁ =17

Find the 100th term of this sequence. (Hint - find the general term first!)

9, 4, -1, -6, -11, ...

• 81

• -340

• -486

• -525

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

• Arithmetic
• Geometric
• Neither

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.LE.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.6.NS.A.1