# Relations and Functions

## Comparison of two or more sets of values, and cases where input corresponds with exactly one output.

Estimated6 minsto complete
%
Progress
Practice Relations and Functions

MEMORY METER
This indicates how strong in your memory this concept is
Progress
Estimated6 minsto complete
%
Relations and Functions

Feel free to modify and personalize this study guide by clicking “Customize.”

### Relations and Functions

#### Vocabulary

Fill in the definitions.

 Word Definition Relation _______________________________________________________ Function _______________________________________________________

In your own words, describe the difference between a relation and a function.

What are the requirements for a relation to be a function?

#### Practice

Determine if each relation is a function and explain why:

Representation Example

Is it a function?

Why?

Set of ordered pairs (1,3), (2,4), (3,3), (4,19) (a subset of the ordered pairs for this function)
Equation
Graph

Answer the following questions:

1. Can a function definition be written in the form  instead of  ?
2. Is it mandatory for a function to have both an input and an output?
3. Give an example of a relation that is not a function, and explain why it is not a function.

Determine if each relation is a function:

1)

2)

3)

4)

5)

For answers click here.

### Explore More

Sign in to explore more, including practice questions and solutions for Relations and Functions.
Please wait...
Please wait...