Quiz Review for 3-1 to 3-3

• Function
• Not a Function

Is this table a function or not a function? 

• Function
• Not a Function

Is this table a function or not a function? 

• Function
• Not a Function 

Does the graph represent a function?

• Yes, because the vertical line test shows there are no repeating input values
• No, because the vertical line test shows there are repeating input values

Is this a function? 

• Yes 
• No

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {-4, -3, 1}

  R: {-4, 0, 1, 2}

• D:{-4, 0, 1, 2}

  R:{-4, -3, 1}

• D:{0, 1, 2, 3, 4} R:{-4, -3, 1}

• D:{0, 1, 2, 3}
  R:{0, 1, 2, 3, 4}

Interpret the y-intercept of the graph.

• All those polled used a social networking site 8 months after February 2005.

• About 8% of those polled used a social networking site in February 2005.

• No one used a social networking site in February 2005.

• There were 8 social networking sites in February 2005.

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Is this a function? 

• Yes
• No