Relation or Function

Front

What are all of the y values or outputs in a relation called?

Back

Range

Front

In the relation {(-1,2), (-2,4), (2,5), (0,-2), (2,0)}, what domain value corresponds to the range value -2?

Back

0

Front

Is the graph pictured a function? (Assume the graph fails the vertical line test)

Back

No

Front

Which of the following is not a function? {(0,1), (1,2), (2,3), (3,4)}, {(0,2), (1,3), (4,3), (1,2)}, {(1,3), (4,2), (2,0), (3,4)}, {(1,2), (2,2), (3,2), (4,2)}

Back

{(0,2), (1,3), (4,3), (1,2)}

Front

Which relation is NOT a function? {(1,-5), (3,1), (-5,4), (4,-2)}, {(2,7), (3,7), (4,7), (5,8)}, {(1,-5), (-1,6), (1,5), (6,-3)}, {(3,-2), (5,-6), (7,7), (8,8)}

Back

{(1,-5), (-1,6), (1,5), (6,-3)}

Front

What is the definition of a function?

Back

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

Front

What is the domain of a relation?

Back

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

Front

What is the range of a relation?

Back

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

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

Give an example of a function.

Back

f(x) = 2x + 3 is a function because each x-value has one corresponding y-value.