Sequences, expression, and formulae

A sequence that carries on for ever is called ....

• Geometric sequence

• Arithmatic sequence

• Infinite sequence

• Finite sequence

"Add 5" this part in sequence is called ....

• rules

• term-to-term rule

• direction

• term

Relationship between two sets of numbers is ....

• function

• mapping

• term-to-term-rule

• input

 $n-3$  is called an ....

• number

• variable

• unknown number

• expression

A function can also be shown as ....

• diagram

• mapping

• input

• mapping diagram

The rule of these function is ....

•  $-4$  

•  $+4$  

•  $+2$  

•  $+3$  

The numbers that able to fill the input are ....

• 4 and 2

• 8 and 10

• 8 and 12

• 12 and 8

Work these out.

• 10

• 9

• 8

• 11

Work these out.

• 1

• 2

• 3

• 5

The rule of these function is ....

• $-4$

• $\div2$

• $\div3$

• $-2$