Q1 Quiz # 1: Sequences / Arithmetic Sequence, Mean & Series

What is the next term in the sequence 9, 5, 1, -3, -7, …?

• 4

• 0

• -4

• -11

Find the 7th term of the sequence in general rule:  $a_n\ =\ 2n\ +\ 5$ .

• 17

• 18

• 19

• 20

What is the next polygon in the order of the number of sides of the polygon: triangle, square, pentagon?

• Hexagon

• Heptagon

• Octagon

• Nonagon

Determine the rule that governs the sequence : 2, 5, 8, 11, …

• 4n + 1

• 3n – 1

• 2n – 1

• 5n+1

What is the next number in: 160, 80, 40, 20, 10, 5, … ?

• 4

• 7/2

• 5/2

• 2

Which of the following is an arithmetic sequence?

• 1, 2, 3, 5, 7, …

• -2, 4, -6, 8, -10, …

• 1, 3, 5, 7, 9, …

• 2, 3, 5, 8, 13, …

What is the common difference of the sequence -8, -3, 2, 7, 12, …?

• 4

• 5

• 6

• 7

What is the 11th term of the arithmetic sequence 5, 12, 19, 26, 33, …?

• 60

• 65

• 70

• 75

What is the general term of the sequence 5, 7, 9, 11, 13 …?

• $a_n=2n+3$

• $a_n=2n-3$

• $a_n=3n-3$

• $a_n=3n+3$

Find the nth term of the arithmetic sequence 2, 5, 8, 11,…

• $𝑎_n=2𝑛+1$

• $𝑎_n=2𝑛-1$

• $𝑎_n=3𝑛-1$

• $𝑎_n=3𝑛+1$