8th grade -- function tables 1/30 & 2/6

Multiple Choice

What is the definition of function?

• Has inputs and outputs
• Every input (x-value) has only ONE output (y-value)

• Inputs have different outputs every time
• x-values and y-values

Inputs

• Input of a function is the independent variable

• Also known as the domain or x-values

Outputs

• Output of a function is the dependent variable. 

• Also known as the range or y-values

• You can also write y in function notation

  such as f(x)

Multiple Choice

All of the x values or inputs are called what?

• Domain

• Range

• Relation

• Function

Multiple Choice

All of the y values or outputs are called what?

• Domain

• Range

• Relation

• Function

Multiple Select

What are 3 different ways to represent ordered pairs?

• Mapping Diagram

• Table

• Inequalities

• Graph

Relation or Function?

• All functions are relations, but not all relations are functions.

• A function must have a unique input for every output.

• The domain (x-value) may only be used once.

• The range (y-values) may be used more than once if they have different domains (x-values)