Arithmetic Sequence

In an arithmetic sequence, what does the common difference represent?

• The product of terms

• The ratio between terms

• The constant added to each term

• The sum of terms

What term is represented by the variable "a" in an arithmetic sequence?

• Common difference

• First term

• Last term

• Sum of terms

What is the missing term/number in the number pattern 1, 2, 3, 5, ____, 13, 21?

• 5

• 6

• 7

• 8

What is the arithmetic mean of 8 and 14?

• 11

• 12

• 13

• 14

What is the formula for the sum of the first n terms of an arithmetic sequence when the common difference is not known?

What is the sum of the first 12 terms of the sequence 50, 47, 44....?

• 402

• 406

• 502

• 506

How can you determine if a sequence is arithmetic?

• By checking if all terms are even

• By examining the ratios between terms

• By looking for a consistent common difference

• By observing the sum of consecutive terms

What is the nth term of an arithmetic sequence if the first term is 2 and the common difference is 9?

In an arithmetic sequence, if the common difference is negative, what can be said about the sequence?

• It is not an arithmetic sequence

• It is a decreasing sequence

• It is a geometric sequence

• It has no pattern

The arithmetic mean between two terms of a sequence is -4. If one of the terms is 17, find the other term.

• -25

• -15

• 15

• 25