Arithmetic and Geometric Series and Sequences

Find the 10th term.

• 16

• 21

• 12

• 30

What is the common difference of the arithmetic sequence below?
-6, -1, 4, 9...

• 5

• -5

• -6

• 1/5

Is this sequence Arithmetic, Geometric, or Neither?
{14, 22, 30, 38, .. }

• Arithmetic

• Geometric

• Neither

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

• 2

• 1/2

• -14

• -7

What is the common difference:
-2, -11, -20, -29...

• Every Number

• 9

• -9

• -2

Work out the missing terms in this arithmetic sequence: ____ , 18 , ___ , 8 , 3 , ___ , -7 , -12 ...

• 23, 13 , -2 ,

• -5 , -10,-15

• 23 , 13 , 5

• 20 , 15 , 10

-21, -16, -11, -6, ...

Is this sequence arithmetic, geometric, or neither?

• arithmetic (common difference d = 5)

• geometric (common ratio r = 5)

• neither

What is the sum of the first 50 terms of the series 2 + 17 + 32 + 47 + ...?

• 1,600

• 18,235

• 18,475

• 19,125

Describe the sequence, find the 5th term, and write the rule

• geometric, a₅ = 2, a_n = 2n - 10

• geometric, a₅ = 0, a_n = -10n + 2

• arithmetic, a₅ = 2, a_n = -10n + 2

• arithmetic, a₅ = 0, a_n = 2n - 10

The next term of the sequence 2,4,8,16 is

• 64

• 32

• 108

• 20