2.1

Question 1

range

Answer 1

the area of variation between upper and lower limits on a particular scale.

Question 2

function

Answer 2

a relationship or expression involving one or more variables.

Question 3

domain

Answer 3

The domain of a function is the complete set of possible values of the independent variable.

Question 4

mapping Diagram

Answer 4

A function is a special type of relation in which each element of the domain is paired with exactly one element in the range

Question 5

vertical line test

Answer 5

a visual way to determine if a curve is a graph of a function or not

Question 6

relation

Answer 6

a collection of ordered pairs containing one object from each set. If the object is from the first set and the object is from the second set, then the objects are said to be related if the ordered pair

Question 7

function notation

Answer 7

an efficient and effective way to display functions of all types in mathematics