Arithmetic Sequences

Question 1

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

Revolt · Accepted Answer

1.6

Question 2

Which is true regarding the sequence below?

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The sequence is not arithmetic because there is no common difference. The differences are .

Question 3

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

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

Question 4

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

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14

Question 5

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

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mc006-5.jpg

Question 6

Which of the following is an arithmetic sequence?

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mc010-2.jpg

Question 7

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

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–4

Question 8

Which of the following is an arithmetic sequence?

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–15.6, –12.9, –10.2, –7.5, –4.8, ...

Question 9

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.

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mc018-1.jpg

Question 10

What is the common difference in the following arithmetic sequence? nan1–122–1310421

Revolt · Accepted Answer

11

Arithmetic Sequences Answers

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