Sequences (Review)

Which of the following shows a pattern?

• 3, 2, 3, 2, 3, 2

• 5, 7, 2, T, 6, Y

• A, G, M, T, 0, 9

• smooth, long, wall, sing

Which of the following patterns shows finite sequence?

• 6, 12, 18, 24, 30, …

• multiples of 6

• First 20 whole numbers

• 100, 50, 25, 12.5, …

• 0, 3, 8, 15

• 1, 3, 5, 7

• 1, 5, 10, 16

• 0, 2, 7, 12

Which of the following describes an arithmetic sequence?

• A sequence in which a term is formed by adding a constant number to the preceding term.

• A sequence in which there is an equal sum between consecutive terms.

• A sequence in which a term minus the preceding term is always positive.

• A sequence in which terms follows a pattern.

Which of the following is the common difference in the sequence 3, -2, -7, …?

• 1

• -5

• 5

• -1

Which is NOT true about the arithmetic sequence: 25, 32, 39, 46, …?

• The common difference is 7.

• The 7th term is 60.

• The 6th term is 60.

• The 8th term is 74.

If three arithmetic means are inserted between -15 and 9, find the first of these arithmetic means.

• 3

• -3

• -6

• -9

What is the arithmetic mean between 15 and 40?

• 28.5

• 29

• 26

• 27.5

Which of the following is a formula for arithmetic series?

• 
• 
• 
•