Identifying and Representing Functions

• Yes
• No

Is this a function? 

• Yes, because every input has exactly one output

• No, because -1 has more than one output 

• No, because 3 is in the input and the output 

Is this a function? 

• Yes, because 15 is assigned the output value of 7 and 9

• No, because 15 has more than one output 

• No, because -1, 0, and 15 have the same output value of 9 

Which is a function?

• W

• X

• Y

• Z

Is the following graph a function?

• Yes, because the x never repeats.

• Yes, because they are individual dots.

• No, because the x repeats.

• No, because it is not a line.

Does the mapping of these points represent a function?

• Function

• Not a Function

• Yes
• No

• Yes
• No

Is this is a function or not a function?

• Function

• Not a Function

Which of these set of coordinates represent a function?

• A

• B

• C

• D