Quiz about Arith and Geom Sequences

Question 1

Arithmetic sequences involve

Accepted Answer

addition and subtraction

Answer

multiplication and division

Answer

multiplication and addition

Answer

subtraction and division

Question 2

Geometric sequences involve

Accepted Answer

multiplication and division

Answer

multiplication and addition

Answer

addition and subtraction

Answer

subtraction and division

Question 3

Is the sequence geometric or arithmetic?
3, 6, 9, 12...

Accepted Answer

Arithmetic

Answer

Geometric

Answer

Neither

Question 4

Is the sequence geometric or arithmetic?
6, 18, 54...

Accepted Answer

Geometric

Answer

Arithmetic

Answer

Neither

Question 5

Is this arithmetic, geometric or neither.
30,39,48,57,66,...

Accepted Answer

Arithmetic

Answer

Geometric

Answer

Neither

Answer

There's a difference???

Question 6

Identify the common difference.
10, 20, 30, 40, ...

Accepted Answer

10

Answer

5

Answer

15

Answer

20

Question 7

Identify the common difference.
97, 86, 75, 64, ...

Accepted Answer

-11

Answer

8

Answer

11

Answer

-8

Question 8

What are the next 3 terms in this sequence of terms? 3, 7, 11, 15

Accepted Answer

19, 23, 27

Answer

18, 22, 26

Answer

19, 21, 23

Answer

18, 21, 24

Question 9

The next term of the series 4,16,64 is

Accepted Answer

256

Answer

132

Answer

120

Answer

150

Question 10

What is the common ratio for the sequence:
28, 14, 7, 3.5...

Accepted Answer

1/2

Answer

2

Answer

-14

Answer

-7

Question 11

Find the 25th term of the sequence if a₁ = 5 and d = 0.5

Accepted Answer

17

Answer

18

Answer

15

Answer

14

Question 12

What is the 100th term in the sequence a_n = 4n-12

Accepted Answer

388

Answer

40012

Answer

-388

Answer

100

Question 13

Given the sequence:
25, 21, 17, 13,...
Write the explicit equation that models the sequence. (Hint: Simplify your equation.)

Accepted Answer

a_n= -4n + 29

Answer

a_n = 4n + 29

Answer

a_n = -4n + 25

Answer

a_n = 4n + 25

Question 14

Write an explicit rule for the general term of the sequence 5, 15, 45, . . . ?

Accepted Answer

a_n = 5(3)^n-1

Answer

a_n = a_n-1 x 3

Answer

a_n = 3(5)^n-1

Answer

a_n = 5 + (n-1)3

Question 15

Question 15.

Accepted Answer

pass

Answer

fly

Answer

run

Answer

talk

Arith and Geom Sequences

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