Identifying Functions

Front

Does this mapping diagram represent a function?

Back

Yes, because each input goes to one and only one output.

Tags

CCSS.8.F.A.1

Front

Is this graph a function or not a function?

Back

Function.

Front

What is the definition of a function?

Back

Every input has only one output.

Tags

CCSS.8.F.A.1

Front

Is this a function or not a function?

Back

Function.

Tags

CCSS.8.F.A.1

Front

Which set of ordered pairs 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)}.

Tags

CCSS.8.F.A.1

Front

What is a mapping diagram?

Back

A visual representation showing how each input is paired with an output.

Tags

CCSS.HSF.IF.A.1

CCSS.8.F.A.1

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

What are input and output in a function?

Back

Input is the value put into a function, and output is the value produced by the function.

Tags

CCSS.HSF.IF.A.1

CCSS.8.F.A.1

Front

Can a function have the same output for different inputs?

Back

Yes, a function can have the same output for different inputs.

Tags

CCSS.8.F.A.1

Front

What is an example of a function?

Back

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

Tags

CCSS.8.F.A.1