A1 - Sequences

What is the value of the sixth term of a?

a_n = {33, 42, 51, 60, ...}

• 78

• 79

• 87

• 68

Tags

CCSS.HSF.BF.A.2

b_n = {25, 30, 35, 40, ...}

If  b_n = 155, what is the value of n?

• 155

• 47

• 78

• 27

Tags

CCSS.HSF.BF.A.2

What is the explicit formula of the sequence?

{33, 42, 51, 60, ...}

• a_n = 9 + 33(n – 1) 

• a_n = 33 – 9(n – 1) 

• a_n = 33 + 9(n – 1) 

• a_n = 9 – 33(n – 1) 

Tags

CCSS.HSF.BF.A.2

What is the recursive formula for the sequence?

{11, 3, –5, –13, ...}

• a₁ = 11

  a_n = a_{n – 1} + 8 

• a₁ = 11

  a_n = a_{n – 1} + 7

• a₁ = 11

  a_n = a_{n – 1} + 9

• a₁ = 11

  a_n = a_{n – 1} – 8 

Tags

CCSS.HSF.BF.A.2

What is the sequence that corresponds to the formula?

f_n = 42 – 3(n – 1)   

• {42, 45, 48, 51, ...} 

• {42, 39, 36, 34, ...}

• {42, 46, 50, 54, ...}

• {42, 39, 36, 33, ...}

Tags

CCSS.HSF.BF.A.2

What is the sequence that corresponds to the formula?

g₁ = 77      

g_n = g_{n – 1} + 14      

• {77, 90, 103, 116, 129, ...} 

• {77, 63, 49, 35, ...}

• {77, 91, 105, 119, 133, ...}

• {77, 62, 47, 32, ...}

Tags

CCSS.HSF.BF.A.2

What is the sequence that corresponds to the graph?

• h_n = –2 + 3n

• h_n = –2 + 3(n – 1)

• h_n = –3 + 2n

• h_n = –3 + 2(n – 1)

Tags

CCSS.HSF.BF.A.2

Given an arithmetic sequence a_n . Its fifth term is 11 and its seventh term is 17. What is the value of a₁?

• -3

• -1

• 1

• 3

Tags

CCSS.HSF.BF.A.2