Arithmetic Sequences

Question 1

What is the common difference in the following arithmetic sequence? 7, 3, –1, –5, ....

Revolt · Accepted Answer

–4

Question 2

What is the common difference in the following arithmetic sequence? 2.8, 4.4, 6, 7.6, ...

Revolt · Accepted Answer

1.6

Question 3

What is the common difference of the arithmetic sequence graphed below?

Revolt · Accepted Answer

mc006-5.jpg

Question 4

What is the common difference of the arithmetic sequence graphed below?

Revolt · Accepted Answer

mc007-3.jpg

Question 5

Which of the following is an arithmetic sequence?

Revolt · Accepted Answer

–15.6, –12.9, –10.2, –7.5, –4.8, ...

Question 6

Which of the following is true regarding the sequence graphed below?

Revolt · Accepted Answer

The sequence is not arithmetic because the terms do not have a common difference.

Question 7

The second term of an arithmetic sequence is –39. The rule can be used to find the next term of the sequence. What is the explicit rule for the arithmetic sequence?

Revolt · Accepted Answer

mc014-2.jpg

Question 8

The relationship between men’s whole-number shoe sizes and foot lengths is an arithmetic sequence, where an is the foot length in inches that corresponds to a shoe size of n. A men’s size 9 fits a foot 10.31 inches long, and a men’s size 13 fits a foot 11.71 inches long. What is the explicit formula for the arithmetic sequence? Round to the nearest hundredth, if necessary.

Revolt · Accepted Answer

mc018-1.jpg

Question 9

What is the next term in the sequence 58, 47, 36, 25, ...?

Revolt · Accepted Answer

14

Question 10

The explicit rule for an arithmetic sequence is . What is the value of the 89th term?

Revolt · Accepted Answer

mc024-3.jpg

Arithmetic Sequences Answers

More from this Course

TRY EDGENUITY HACKS