Is it a Function?

Front

What is the definition of a function?

Back

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

Front

Is this table a function? (Example: x: 1, 2, 3; y: 4, 5, 6)

Back

Function

Front

Is this table a function? (Example: x: 1, 2, 2; y: 4, 5, 6)

Back

Not a Function

Front

Is this graph a function? (Vertical line test fails)

Back

Not a Function

Front

Is this graph a function? (Vertical line test passes)

Back

Function

Front

What is the vertical line test?

Back

A method to determine if a graph represents a function; if a vertical line intersects the graph at more than one point, it is not a function.

Front

Can a function have the same output for different inputs?

Back

No, a function must have a unique output for each input.

Front

What is a domain in a function?

Back

The set of all possible input values (x-values) for the function.

Front

What is a range in a function?

Back

The set of all possible output values (y-values) for the function.

Front

Is the relation {(1,2), (2,3), (3,4)} a function?

Back

Yes, it is a function.