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Mathematics

9th - 12th Grade

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Arithmetic Sequences
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12 questions

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1.

FILL IN THE BLANKS QUESTION

15 mins • 1 pt

What is a1 in the following sequence?


-6, -14, -22, -30, ...

(a)  

2.

DROPDOWN QUESTION

15 mins • 2 pts

An arithmetic sequence is an ordered pattern in which a constant amount is ​ (a)   or ​ ​ (b)   to each term to obtain the next term.

added
subtracted
Multiplied
divided
guessed

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which is a recursive rule for the nth term in the sequence 15, 8, 1, ...?

  a1=15, an=an−1−7a_1=15,\ a_n=a_{n-1}-7   

   an=15−7(n−1)a_n=15-7\left(n-1\right)  

   a1=−7, an=an−1+15a_1=-7,\ a_n=a_{n-1}+15  

   an=−7+15(n−1)a_n=-7+15\left(n-1\right)  

Tags

A.FGR.2.2

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Use the explicit formula to find the 5th term of the sequence.
an=15−2(n−1)a_n=15-2\left(n-1\right)  

7

9

11

13

5.

MATCH QUESTION

15 mins • 4 pts

Match each variable from the Arithmetic Formula with its definition.

Common Difference

a1

1st Term

n

Order/Position of Term

d

Nth Term

an

Answer explanation

Media Image

Tags

CCSS.MATH.CONTENT.HSF.BF.A.1

CCSS.MATH.CONTENT.HSF.BF.A.2

CCSS.MATH.CONTENT.HSF.LE.A.2

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

An arithmetic sequence is given below.


2, 9, 16, 23, ...


Which is the explicit formula for the nth term an?

an = 9 + 2(n-1)

an = 2 - 9(n-1)

an = 2 + 7(n-1)

an = 7 + 2(n-1)

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Find the next three terms in the arithmetic sequence: 9, 19, 29, 39, ...

45, 54, 63
49, 59, 69
39, 49, 59
59, 69, 79

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