Explicit and Recursive Arithmetic

Write a recursive formula for the following sequence: 10, 5, 0, -5,...

• a₁= 10

  a_n= a_n-1 - 5

• a₁= 10

  a_n= a_n-1 + 5

• a₁= 10

  a_n= a_n (5)

• a₁= 10

  a_n= a_n-1 (5)

Identify the common difference.

• d=4

• d=3

• d=-4

• d=-3

The 6th term of the sequence 4,7,10,13 are

• 19

• 15

• 18

• 16

Given the sequence 4, 11, 18, 25...... what is a₃ ?

• 4

• 11

• 18

• 25

• 1

• 2

• 3

• 4

Determine the 3rd term of the sequence.

a₁=5

a_n= 2a_n-1 - 1

• 14

• 13

• 17

• 16

Create the explicit formula for the sequence: 2, 8, 14, ...

• a_n=2+6n

• a_n=-6+6n

• a_n=6n-4

• a_n=4-6n

Write a recursive formula for the following sequence: 16,8, 4, 2,...

• a₁=16

  a_n=a_n-1 (2)

• a₁=16

  a_n=a_n-1 (1/2)

• a₁=16

  a_n=a_n-1 + (1/2)

• a₁=16

  a_n=a_{n-1 +} (2)

In a sequence the first term is 7 and the common difference is 2. The fifth term is:

• 9

• 15

• 13

• 14

What is the 15th term of the sequence an = -3n+50

• 95

• -5

• 5

• -95