Arithmetic Sequence (Recursive and Explicit Formula)

Arithmetic Sequence (Recursive and Explicit Formula)

9th Grade

15 Qs

quiz-placeholder

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Arithmetic Sequence (Recursive and Explicit Formula)

Arithmetic Sequence (Recursive and Explicit Formula)

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSF.BF.A.2, HSF.LE.A.2

Standards-aligned

Created by

Barbara White

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Given the sequence:

25, 21, 17, 13,...

Write the explicit equation that models the sequence.

an = 4n + 29

an = 25 +(-4)(n-1)

an = -25 +(-4)(n-1)

an = 4n + 25

Tags

CCSS.HSF.BF.A.2

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Write the explicit formula for the sequence -4, -6, -8, -10,...

an = -4 + (-2)(n-1)

an = 4 + (-2)(n-1)

an = -4 - 2(n-1)

an = -4 + 2(n-1)

Tags

CCSS.HSF.BF.A.2

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the common ratio for the sequence:

3, 15, 75...

12

1/5

5

4

Tags

CCSS.HSF.BF.A.2

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the explicit rule for the sequence:

11, 22, 44, 88...

an = 2(11)n-1

an = 11x2

an = 11(2)n-1

a1 = 11 ; an+1 = an * 2

Tags

CCSS.HSF.LE.A.2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is a1?
3, 15, 75, 375, 1875...

3
3/5
5
1875

Tags

CCSS.HSF.BF.A.2

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

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

4

11

18

25

Tags

CCSS.HSF.BF.A.2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is a10 for the sequence

4, 4.5, 5, 5.5, 6.....

6

6.5

8.5

9.5

Tags

CCSS.HSF.BF.A.2

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