Relations and Functions

Front

Is this a function?

Back

Yes

Front

Is this table a function or not a function?

Back

Not a Function

Front

A relation where each x value has exactly one y value is a

Back

function

Front

Is this relation a function?

Back

True

Front

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

Back

D:{-4, 0, 1, 2} R:{-4, -3, 1}

Front

What is a function?

Back

A relation where each input (x) has exactly one output (y).

Front

What is the domain of a function?

Back

The set of all possible input values (x values).

Front

What is the range of a function?

Back

The set of all possible output values (y values).

Front

If a relation has the pairs (1,2), (1,3), (2,4), is it a function?

Back

No, because the input 1 has two different outputs.

Front

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

Back

Each x value maps to a unique y value and each y value maps to a unique x value.