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Relations and Functions
Fill in the definitions.
In your own words, describe the difference between a relation and a function.
What are the requirements for a relation to be a function?
Determine if each relation is a function and explain why:
Is it a function?
|Set of ordered pairs||(1,3), (2,4), (3,3), (4,19) (a subset of the ordered pairs for this function)|
Answer the following questions:
- Can a function definition be written in the form
x=3yinstead of y=3x?
- Is it mandatory for a function to have both an input and an output?
- 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:
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