Flashcard - Functions

Front

Is this graph a function or not a function?

Back

Not a Function

Front

Which set of values is a function? (9,5) (10,5) (9,-5) (10,-5), (3,4) (4,-3) (7,4) (3, 8), (6,-5) (7, -3) (8, -1) (9, 1), (2, -2) (5, 9) (5, -7) (1, 4)

Back

(6,-5) (7, -3) (8, -1) (9, 1)

Front

What is the output of the function machine if the input is x = 5?

Back

20

Front

Find the output when you input x= -2.

Back

y = 9

Front

What is the definition of function?

Back

Every input has exactly ONE output.

Front

What is a function?

Back

A relation where each input has one and only one output.

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

Give an example of a function.

Back

f(x) = 2x + 3 is a function because each input x has a unique output.

Front

What is the domain of a function?

Back

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

Front

What is the range of a function?

Back

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