Arithmetic Sequences and Formulas

What is the rate of this arithmetic sequence?

• -2

• 2

• 1

• 14

What is the zero term (a_0) of this arithmetic sequence? (hint**you have to find it)

• -2

• -1

• 1

• -2

Now we know:

zero term= -1

Constant rate= 2

Which explicit formula fits this scenario?

• a_n = -1n + 2

• a_n = 2n - 1

• a_n = n - 1

• a_n = 2n + 1

What is the explicit formula for a sequence with a zero term of 6 and a common difference of 3.2?

• a_n = 6n - 3.2

• a_n = 3.2n - 6

• a_n = 3.2n +6

This is an arithmetic sequence:

-4, 5, 14, 23, 32, 41, 50

Is this an arithmetic sequence:

78, 74, 70, 65, 63, 60,

How many boxes will be in the next diagram

• 11

• 7

• 9

• 10

First, write a rule for the nth term...

then find how many squares will be in the 5th diagram

• 9

• 11

• 10

• 12

Which kind of sequence has a common difference?

• Arithmetic

• Geometric

Is this sequence arithmetic, geometric, or neither?
{26, 22, 18, 14, ...}

• Arithmetic

• Geometric

• Neither