Introduction to Function

It is a rule that relates values from a set of values (domain) to a second set of values (range).

• Function

• Relation

• Domain

• Range

It is a relation where each element in the domain is related to only one value in the range by some rule.

• Function

• Relation

• Domain

• Range

A set of all x-coordinates or independent variables that stands alone and isn't changed by the other variables you are trying to measure.

• Range

• Domain

• x

• y

A set of all y-coordinates or dependent variables that depends on other factors.

• y

• x

• range

• domain

Which among the following can be used to express functions?

• ordered pairs

• tables of values

• graph

• correspondence mapping

According to the vertical line test, a graph of a mathematical relation is a function if any vertical line drawn passing through the graph intersects the graph at ______.

• 0 point

• exactly 1 point

• exactly 2 points

• more than or equal to 3 points