Arithmetic Sequences Recursive and Explicit Equation

This sequence is a(n)...

• Arithmetic Sequence with a common difference of 5

• Arithmetic Sequence with a common ratio of 5

• Geometric Sequence with a common difference of 5

• Geometric Sequence with a common ratio of 5

Given the sequence: 125, 25, 5, .... Write the explicit rule:

• a_n = (125)(1/5)^(n-1)

• a_n = 625(1/5)^(n-1)

• a_n = 625(5)⁽ⁿ⁾

• a_n = 125 + 5n

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

• a_n = 29-4(n-1)

• a_n = 4+25(n-1)

• a_n = 25-4(n-1)

• a_n = 4n + 25

Given the following sequence and a_n = 7, what is a_n+1?

• 2

• 12

• 17

• 22

Is this graph Arithmetic or Geometric?

• Arithmetic

• Geometric

The next two terms of the sequence 4,7,10,13 are

• 16 and 19

• 15 and 19

• 16 and 18

• 15 and 18

The next two terms of the sequence 4,7,10,13 are ....

• 16 and 19

• 15 and 19

• 16 and 18

• 15 and 18

Identify the common difference. 
10, 20, 30, 40, ...

• 5

• 10

• 15

• 20

Identify the common difference.
3, 7, 11, 15, ...

• 6

• 5

• 4

• 2

Identify the common difference.
97, 86, 75, 64, ...

• 8

• 11

• -11

• -8