Function or Not Function

Does the mapping of these points represent a function?

• Function

• Not a Function

Is the following a function?

• Yes, this is a function.

• No, it's not a function.

• Can't be determined with this information.

Is this a function?

• Yes

• No

• Let me ask my dog...

• Why are there letters in math?

Is this table of values a function or not a function?

• Function

• Not a Function

Answer explanation

Think about a vending machine: inputs are "buttons", outputs are what the vending machine gives you - are your outputs consistent for an input/"button"?

Does the mapping of these points represent a function? (Note: the left oval represents your x values and the right oval represents your y values)

• Function

• Not a Function

Which of the following is the correct definition of a function?

• A relation where each input has exactly one output

• A relation where each input has multiple outputs

• A relation where each output has multiple inputs

• A relation where inputs and outputs are the same

Which of the following represents a function?

Which of the following does not represent a function?

• Yes
• No

Which of the following is the graph of a linear function?

• A parabola

• A straight line

• A circle

• A hyperbola