Arithmetic Sequences and Series

a₁=5, a₂=11, a₁₅=?

• 95

• 89

• 81

• 159

What is the 7th term in the sequence

7, 11, 15, … ?

• 30

• 31

• 32

• 33

The 6th term in the arithmetic sequence

18, 11, 4, …

• -3

• -10

• -17

• -24

It is a sequence that has a common difference.

• Arithmetic Means

• Arithmetic Sequence

• Arithmetic Series

• Arithmetic Pattern

It is the sum of definite number of terms of an arithmetic sequence

• Arithmetic Means

• Arithmetic Sequence

• Arithmetic Series

• Arithmetic Patterns

What is the common difference inthe sequence -7, -5, -3, -1, … ?

• 1/2

• -1/2

• 2

• -2

Which of the following is NOT an arithmetic sequence?

• 48, 24, 12, 6, 3, ...

• 3, 7, 11, 15, 19, ...

• 1, 0, -1, -2, -3, ...

Insert 5 arithmetic means in the sequence

These are terms between any two non-consecutive terms of an arithmetic sequence.

• Arithmetic Means

• Arithmetic Sequences

• Arithmetic Series

• Arithmetic Pattern

A theater has 32 rows of seats. If there are 26 seats in the 1st row, 30 in the 2nd, 34 in the 3rd, and so on, how many seats are there in all? Assume the pattern continues.

• 2,791 seats

• 2,803 seats

• 2,816 seats

• 2.829 seats