Sequences and formulas REVIEW

What is the distance from one number to the next in a sequence of numbers that is represented by a (d) in an arithmetic sequence?

• Common denominator
• Common opposites
• Common domain
• Common difference

Tags

CCSS.HSF.BF.A.2

Identify the common difference for the given arithmetic sequence.

3, 10, 17, 24, 31, ...

• d = -7

• d = -8

• d = 7

• d = 3

Tags

CCSS.HSF.BF.A.2

Identify the common difference of the given arithmetic sequence.

5, 1, -3, -7, ...

• d = -4

• d = -5

• d = 5

• d = 7

Tags

CCSS.HSF.BF.A.2

Given the sequence 4, 11, 18, 25...... what is a₃ ?

• 4

• 11

• 18

• 25

Tags

CCSS.HSF.BF.A.2

Find a₄.

9, 6, 3, 0, -3, ...

• 9

• 6

• 0

• -4

Tags

CCSS.HSF.BF.A.2

Find a₇.

15, 20, 25, 30, 35, ...

• 25

• 35

• 40

• 45

Tags

CCSS.HSF.BF.A.2

Write the recursive formula for 6, 17, 28, 39, 50....

• a_n=a_n-1+11
  a₁=6
• a_n=a_n-1-4
  a₁=6
• a_n=a_n-1+9
  a₁=6
• a_n=a_n-1+6
  a₁=6

Tags

CCSS.HSF.BF.A.2

Write a recursive formula for the following sequence:

10, 5, 0, -5,...

• a₁= 10

  a_n= a_n-1 - 5

• a₁= 10

  a_n= a_n-1 + 5

• a₁= 10

  a_n= a_n (5)

• a₁= 10

  a_n= a_n-1 (5)

Tags

CCSS.HSF.IF.A.3

What is the 15th term of the sequence an = -3n+50

• 95
• -5
• 5
• -95

Tags

CCSS.HSF.BF.A.2

What is the 40th term in the sequence with the given explicit formula:

4n - 32

• 12

• 138

• 128

• -16

Tags

CCSS.HSF.BF.A.2