(New) Arithmetic or Geometric Sequences

Which sequence is an geometric sequence?

• 3, 6, 2, 7, ...

• 3, 6, 12, 24, ...

• 3, 6, 10, 15, ...

• 3, 7, 11, 15, ...

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

What is a₅ ?

• -13

• -11

• -7

• -22

Which sequence is a geometric sequence with a common ratio of 3?

• 5, 3, 1, -1, ...

• 5, 7, 9, 11, ...

• 5, 10, 20, 40, ...

• 5, 15, 45, 135, ...

What are the next 3 terms in this sequence of terms?     3, 6, 9, 12, 15

• 18, 21, 27

• 19, 21, 23

• 19, 23, 27

• 18, 21, 24

Find the common difference:

25, 13, 1, -11, ...

• 12

• -12

• 8

• -8

What is the common ratio of the geometric sequence below?
6, 120, 2,400, 48,000,...

• 25

• 20

• 5

• 4

Arithmetic sequences involve

• multiplication and division

• multiplication and addition

• addition and subtraction

• subtraction and division

Is the sequence-4, -12, -36, -108,... arithmetic geometric, or neither?

• arithmetic

• geometric

• neither

Arithmetic, geometric, or neither?

1, 4, 7, 10, 13, ...

• Arithmetic

• Geometric

• Neither

Which of the following algebraic expressions best describes the nth term of the arithmetic sequence? 7, 5, 3, 1...

• A(n) = 7 +6 (n-1)

• A(n) = 7 + 2 (n-1)

• A(n) = 2 +7 (n-1)

• A(n) = 7 - 2 (n-1)