Relations and Functions

Front

A graph that consists of points that are not connected is a _____

Back

discrete function

Front

What is the definition of a function?

Back

Every input has only ONE output.

Front

State the domain of the relation: (5, -9), (5, -8), (0, 2), (8, -6)

Back

{ -6, 0, 2, 8 }

Front

Is the relation a function? Why? (11, 2), (11, 3)

Back

No, because the x-value 11 has two y-values paired with it.

Front

How many zeros are in this graph of the function? (Graph shows 3 intersections with x-axis)

Back

3

Front

What is the range of a function?

Back

The set of all possible output values (y-values) of a function.

Front

What does the vertical line test determine?

Back

Whether a graph represents a function.

Front

Define the term 'domain' in relation to functions.

Back

The set of all possible input values (x-values) for a function.

Front

What is a continuous function?

Back

A function whose graph is unbroken and can be drawn without lifting the pencil.

Front

What is an example of a discrete function?

Back

The number of students in a classroom (can only be whole numbers).