Algebra 2 Sequences

Given the sequence:
 25, 21, 17, 13,...
Write the explicit equation that models the sequence.

• a_n = 25 + 4(n-1)

• a_n = 25 + 21(n-1)

• a_n = 25 - 4(n-1)

• a_n = 13 + 4(n-1)

• -4, 34, 72, 110, 148

• 38, 42, 46, 50, 54

• 38, -152, 608, -2432, 9728

• 38, 34, 30, 26, 22

What is the distance from one number to the next in a sequence of numbers that is represented by a (d) in an arithmetic sequence?

• Common denominator

• Common opposites

• Common domain

• Common difference

What is the the third term in the sequence, 15, 21, ___, 33, 39, 45, ...?

• 25

• 26

• 27

• 28

Which explicit formula matches this table?

Each individual number in a sequence of numbers is called what?
Hint:  Look in your notes.

• Common difference

• Successive term

• Term

• Geometric term

• Arithmetic

• Geometric

• Neither

• Arithmetic

• Geometric

• Neither

Find the next number:

4, 10, 16, 22...