Arithmetic and Geometric Sequences

Arithmetic and Geometric Sequences

9th Grade

12 Qs

quiz-placeholder

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Arithmetic and Geometric Sequences

Arithmetic and Geometric Sequences

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSF.BF.A.2, 8.F.B.4, HSF.LE.A.2

Standards-aligned

Created by

Arniece Gee

Used 643+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Which sequence is an arithmetic sequence?

3, 6, 2, 7, ...

3, 6, 12, 24, ...

3, 6, 10, 15, ...

3, 7, 11, 15, ...

Tags

CCSS.HSF.BF.A.2

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

This is an arithmetic sequence. 5, 2, –1, –4, . . .

What is a7 ?

-13

-11

-18

-22

Tags

CCSS.HSF.BF.A.2

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In a certain arithmetic sequence, a5 = 12 and a6 = 16. What is a1 ?

-8

-4

4

8

Tags

CCSS.HSF.BF.A.2

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The first term of an arithmetic sequence is b and the second term is c. What is the explicit formula to find the nth term of

the sequence?

an = b + (n − 1) c

an = c + (n − 1) b

an = b + (n − 1) (b − c)

an = b + (n − 1) (c − b)

Tags

CCSS.HSF.BF.A.2

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The explicit formula for a sequence is an = 5 − 3n. What is the value of a22 ?

a22 = -61

a22 = 61

a22 = -1

a22 = -51

Tags

CCSS.HSF.BF.A.2

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

In an arithmetic sequence, the third term is 1 and the ninth is 49. What is the explicit formula for the sequence?

an = 8n − 15

an = −8n − 15

an = 8n − 23

an = −8n − 23

Tags

CCSS.HSF.BF.A.2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

This is an arithmetic sequence. 8, 7.3, 6.6, 5.9, . . .

What function describes the sequence?

f (x) = −0.7x + 8

f (x) = −0.7x + 8.7

f (x) = 0.7x + 8

f (x) = 0.7x + 8.7

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

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