Function or Relation?

Front

Is the graph pictured a function?

Back

No

Front

What is the definition of function?

Back

Every input has only ONE output

Front

Function or Relation?

Back

Function

Front

What is a relation?

Back

A set of ordered pairs (x, y) where x can have multiple y values.

Front

What does it mean for a function to be one-to-one?

Back

Each input has a unique output.

Front

Can a function have the same output for different inputs?

Back

No, that would not be a function.

Front

What is an example of a function?

Back

f(x) = x + 2 is a function.

Front

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

Back

The set {(1, 2), (1, 3)} is a relation but not a function.

Front

What is the vertical line test?

Back

If a vertical line crosses a graph more than once, it is not a function.

Front

What are inputs in a function?

Back

The values you put into a function, usually represented as x.