12.6 Unit 5 Flashcard Review

Front

What is a function?

Back

A function is a relation where each input (x-value) has exactly one output (y-value).

Front

What is the domain of a function?

Back

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

Front

What is the range of a function?

Back

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

Front

How can you determine if a set of ordered pairs is a function?

Back

A set of ordered pairs is a function if no two pairs have the same first element (x-value).

Front

What does it mean if a relation is not a function?

Back

It means that at least one input (x-value) is associated with more than one output (y-value).

Front

Given the function {(3, 11), (4, 18), (5, 27), (6, 38)}, what is the range?

Back

The range is {11, 18, 27, 38}.

Front

What is the domain of the function {(0,1), (1,-3), (2,-4), (-4,1)}?

Back

The domain is {-4, 0, 1, 2}.

Front

What is the range of the function {(0,1), (1,-3), (2,-4), (-4,1)}?

Back

The range is {-4, -3, 1}.

Front

Is the relation {(3,4), (4,-3), (7,4), (3,8)} a function?

Back

No, because the input 3 has two different outputs (4 and 8).

Front

Is the relation {(2,5), (3,5), (4,5)} a function?

Back

Yes, because each input has exactly one output.