Sequences N-1 Notation

Find the common difference: -34, -29, -24, -19, ...

• d = -5

• d = 5

• d = -6

• d = 6

Find the next three terms in the arithmetic sequence: -33, -24, -15, -6, ...

• -1, 7, 15

• -5, 2, 9

• 3, 12, 21

• -65, -73, -81

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)

What is a formula for the nth term in the sequence -4, -9, -14, ...?

Find the 20th term of the arithmetic sequence {5, 9, 13, 17, .....}

Write in sequence notation for the following sequence: 4, 12, 36, 108...

• a(n) = 4*3^(n-1)

• a(n) = 4*3ⁿ

• a(n) = 4+3n

• a(n) = 4(3n)

Given a₁= 5 and d= 2 find a₆

• 13

• 10

• 15

• 17

Select the recursive rule (sequence notation) that represents the sequence.

Find a₁₈ for the following geometric sequence,

-3, 6, -12, 24,,,

• -37

• -786,432

• 393,216

• 258,280,326

Write a formula for the following sequence:

2, 8, 14, ...

• t(n) = 2 + 6n

• t(n) = - 6 + 6n

• t(n) = 6n - 4

• t(n) = 4 - 6n