Function or Not/Domain and Range

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 mapping a function or not a function? 

• Function
• Not a Function

Is this graph a function or not a function? 

• Function 
• Not a Function

Is this set of ordered pairs a function or not a function? 

• Function
• Not a Function 

Function or Not a Function?

• Function
• Not a Function

Which graph does NOT pass the vertical line test?

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

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

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}
• D: {-4, 0, 1, 2}
  R:{-4, -3, 1}
• D: {0, 1, 2, 3, 4}
  R:{1, -3, -4}
• D: {0, 1, 2, -4}
  R: {1, -3, -4, 1}

What is the range of the following relation:
(9, -2) (4, 3)  ( 8, 10) ( -4, 8)

• {-4, 4, 8, 9}
• {-2, 3, 8, 10}
• {(9, -2) ( 4, 3)}
• {(8, 10) (-4, 8)}

What is the domain of this function?
(2, 4), (5, 5), (8, 6), (11, 7)

• {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
• {2, 5, 8, 11}
• {4, 5, 6, 7}
• {2, 4, 5, 8, 6, 11, 7}

What is the range?

• {-2, -1, 0, 3}
• {3, 0, -1, 0, -2}
• {-4, -2, 1, 2, 5}
• {-4, -2, -1, 0, 1, 2, 3, 5}