Explicit Arithmetic

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

• d = -5

• d = 5

• d = -6

• d = 6

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

• 8

• 11

• -11

• -8

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

• 6

• 5

• 4

• 2

Find the 32nd term of this sequence.
34, 37, 40, 43, ...

• 32

• 64

• 127

• 356

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

• 8

• 11

• -11

• -8

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

• 6

• 5

• 4

• 2

The next term of the sequence 2,4,8,16 are

• 64

• 32

• 108

• 20

Given the arithmetic sequence
a_n = 12 + (n-1)3 
which equation is equivalent

• a_n = 3n-12

• a_n = 3n+9

• a_n = 3n +12

• a_n = 3 + 12(n-1) 

Given the arithmetic sequence
a_n = 14 + (n-1)9 
which equation is equivalent

• a_n = 9n-5

• a_n = 9n+5

• a_n = 5n +9

• a_n = 9 + 14(n-1) 

Find the explicit formula:
-23, -16, -9, -2, ...

• a_n = -23 + 7(n -1)

• a_n = -23 - 7(n -1)

• a_n = 7 - 23(n -1)

• a_n = 7 + 23(n -1)