Unit 1 LP 3: Arithmetic Sequences and Formulas Assessment

• 2, 5, 7, 12

• 2, 7, 9, 14

• 2, 5, 10, 15

• 2, 7, 12, 17

Tags

CCSS.HSF.BF.A.2

An arithmetic sequence is shown below.

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

Which linear function can be used to determine the nth term of the sequence?

• y = -4n + 9

• y = -4n + 5

• y = -5n + 9

• y = -5n + 1

Tags

CCSS.HSF.BF.A.2

A sequence is shown below.

32, 26, 20, 14, ...

Which explicit formula can be used to determine the nth term of the sequence?

• a_n = -6 + 32(n-1)

• a_n = 6 - 32(n-1)

• a_n = 32 - 6(n-1)

• a_n = 38 - 6(n-1)

Tags

CCSS.HSF.BF.A.2

The function below describes an arithmetic sequence, where A(n) is the nth term and n is the term number.

A(n) = 6 + 3(n - 1)

Which table best fits the sequence?

• 
• 
• 
• 

Tags

CCSS.HSF.BF.A.2

Write a recursive rule for the sequence -10, -3, 4, 11, ...

• a_n= a_n-1 - 8

• a_n= a_n-1 + 7

• a_n= a_n-1 - 7

• a_n= a_n-1 + 8

Tags

CCSS.HSF.IF.A.3

The first four terms of a sequence are shown below.

-10, -14, -18, -22

Which explicit formula in linear form that can be used to determine the nth term in the sequence?

• a_n = -4n – 10

• a_n = -4n – 6

• a_n = 4n – 6

• a_n = 4n – 10

Tags

CCSS.HSF.BF.A.2

Select the explicit rule that represents the sequence.

• A_n=14(-3)(n - 1)

• A_n= 3 - 14(n - 1)

• A_n= 14 - 3(n - 1)

• A_n= 14 + 3(n-1)

Tags

CCSS.HSF.BF.A.2

Write the explicit formula for the sequence.

15, 22, 29, 36, 43, ...

Given the recursive formula, find the explicit form
a_n = a_n-1 - 5
a₁ = 22

• a_n = 22 + (n-1)(-5)
• a_n = 22 + (n-1)(5)
• a_n = -5 + (n-1)(22)
• a_n = -16 + (n-1)(-5)

Tags

CCSS.HSF.BF.A.2

Find the explicit rule?

• 12 + 2(n-1)

• 14 + 2(n-1)

• 16 - 2(n-1)

• 18 - 2(n-1)