Relation & Function Review (Math 8)

Front

What is a function?

Back

A function is a relation where each x-value has exactly one corresponding y-value.

Front

What does it mean if a relation is not a function?

Back

A relation is not a function if at least one x-value corresponds to multiple y-values.

Front

What is the vertical line test?

Back

The vertical line test is a method to determine if a relation is a function by checking if any vertical line intersects the graph at more than one point.

Front

What is the domain of a relation?

Back

The domain of a relation is the set of all possible x-values.

Front

What is the range of a relation?

Back

The range of a relation is the set of all possible y-values.

Front

What is an ordered pair?

Back

An ordered pair is a pair of numbers (x, y) that represents a point in a coordinate plane.

Front

What is a relation in mathematics?

Back

A relation is a set of ordered pairs.

Front

Can a function have repeating x-values?

Back

No, a function cannot have repeating x-values with different corresponding y-values.

Front

What is an example of a function?

Back

An example of a function is the relation {(1, 2), (2, 3), (3, 4)}.

Front

What is an example of a relation that is not a function?

Back

An example of a relation that is not a function is {(1, 2), (1, 3), (2, 4)}.