Function or Relation?

Front

What is a function?

Back

A function is a relation where every input has only ONE output.

Front

What is a relation?

Back

A relation is a set of ordered pairs, which can have multiple outputs for a single input.

Front

Is this a function? (Example: {(1,2), (1,3)})

Back

No, because the input 1 has two different outputs (2 and 3).

Front

Is this a function? (Example: {(1,2), (2,3)})

Back

Yes, because each input has only one output.

Front

What does the term 'input' mean in a function?

Back

An input is a value that is put into a function to get an output.

Front

What does the term 'output' mean in a function?

Back

An output is the result you get after applying a function to an input.

Front

Can a function have the same output for different inputs?

Back

Yes, a function can have the same output for different inputs.

Front

What is the vertical line test?

Back

A method to determine if a graph represents a function; if a vertical line crosses the graph more than once, it is not a function.

Front

What are x-values in a function?

Back

X-values are the inputs of a function.

Front

What are y-values in a function?

Back

Y-values are the outputs of a function.