Think you’ve got your head wrapped around **Sequences**? Put your knowledge to
the test. Good luck — the Stickman is counting on you!

Q. A sequence is

a list of numbers.

an infinite list of numbers.

an infinite list of terms separated by commas.

a list of numbers where the *n*^{th} number is given by a mathematical formula.

Q. A sequence is defined by

Find *a*_{2}.

4

Q. Let *a*_{n} be the decimal expansion of correct to *n* decimal places.

Find *a*<sub>1</sub>.

3

3.3

3.33

3.333

Q. Which formula gives the general term for the sequence of positive odd numbers if we start the sequence at *n* = 0?

Q. Find the formula for the general term of the sequence

0, -10, 20, -30, 40, -50

if we start with *n* = 0.

Q. Give the formula for the general term of the sequence

starting with *n* = 1.

Q. Which of the following descriptions produce the sequence of natural numbers

1, 2, 3, 4,... ?

(I) *a _{n}* =

(II)

(III)

(IV)

I and II

I and IV

II and III

III and IV

Q. Find the general term of the sequence

0.5, 2, 4.5, 8, 12.5, ...

starting with *n* = 1.

Q. Which description produces the sequence 0,6,24,60,... ?

Q. Find the general term for the sequence

starting with *n* = 1.