Quiz about Arithmetic and Geometric Sequence Review

Question 1

What is the common ratio in this sequence?
{96, 48, 24, 12, ... }

[Remember that we are MULTIPLYING to get from one term to the next.]

So $$\div$$ 8 would be the same as $$ imes\frac{1}{8}$$ .

Accepted Answer

1/2

Answer

2

Answer

12

Answer

24

Question 2

Find the common ratio for the geometric sequence.

Accepted Answer

-1

Answer

1

Answer

7

Answer

-7

Question 3

Write the explicit formula for the geometric sequence.

Accepted Answer

a_n = 3(-4)^n-1

Answer

a_n = 4(3)^n-1

Answer

a_n = 3(4)^n-1

Answer

a_n = -4(3)^n-1

Question 4

What is the 14th term of the geometric sequence?

Accepted Answer

4,782,969

Answer

14,348,907

Answer

1,594,323

Answer

45

Question 5

Is the sequence arithmetic: -3, 3, -3, 3, ...

Accepted Answer

No

Answer

Yes

Question 6

Find the next three terms in the arithmetic sequence: -3, -8, -13, -18, ...

Accepted Answer

-23, -28, -33

Answer

-20, -24, -28

Answer

-21, -25, -29

Answer

-24, -29, -32

Question 7

Find the next three terms in the arithmetic sequence: 25, 34, 43, 52, ...

Accepted Answer

61, 70, 79

Answer

63, 72, 81

Answer

79, 88, 97

Answer

70, 79, 88

Question 8

Find 26th term in the arithmetic sequence: -15, -35, -55, -75, ...

Accepted Answer

-515

Answer

-490

Answer

-535

Answer

460

Question 9

The next term of the series 11,8,5,2 is...

Accepted Answer

-1

Answer

-2

Answer

1

Answer

2

Question 10

Find the first four terms of the sequence given the rule:
a_n = 4(5)^n-1

Accepted Answer

4, 20, 100, 500

Answer

20, 100, 500, 2500

Answer

5, 20, 80, 320

Answer

4, 9, 14, 19

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