Identifying Number Sequence

Find the n^th term of the following sequence... 13, 21, 29, 37...

• 8n-5

• 8n+5

• 5n+8

• 5n-8

Find the common ratio:
3 , 9, 27, 81

• 3

• 9

• 6

• 81

Is the sequence arithmetic: 37, 31, 25, 19, ...

pg.25

• Yes

• No

What is a geometric sequence?

• a list of numbers where each term is found by multiplying the previous term by a constant

• a list of numbers where each term is found by adding the previous term by a constant

Which explicit formula can be used to model the sequence?

• a_n = 3 - 11(n - 1)

• a_n = 2 + 3(n - 1)

• a_n = 11 - 3(n - 1)

• a_n = 3 + 2(n - 1)

Given the sequence 8, 16, 32, ..., find the explicit equation.

• t(n) = 8(2)^n-1

• t(n) = 4(2)^n-1

• t(n) = 2(4)^n-1

• t(n) = 2 + 4(n-1)

Find the n^th term of the following sequence...

4, 11, 18, 25...

• 7n+3

• 7n-3

• 3n+7

• 3n-7

Determine the common ratio of the geometric sequence graphed below.

• r=3

• r=4

• r=6

• r=8

What does a₁ represent?

• Any term

• First term

• Last term

• The nth term