Functions Review

Which of the following is NOT a function?

• (1, 1) (2, 2)
  (3, 3) (4, 4)
• (4, 5) (1, 5)
  (3, 8) (4, 6)
• (10, 2) (-10, 2)
  (6, 4) (5, 3)
• (6, 1) (5, 1)
  (4, 1) (3, 1)

What is the range for the function f(x) = 2x³ ?

• x ≥ 0
• {-1, 0, 1}
• all real numbers ℝ
• no numbers

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 

Is this mapping a function or not a function? 

• Function
• Not a Function

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

Name the popular men's hairstyle that was "business in the front and party in the back"

• mohawk
• fauxhawk
• mullet
• bowl cut

Who you gonna call?

• 911!
• Ghostbusters!
• Mario Bros!
• E.T.

Is the relation a function?{(1,5),(1,7),(3,9),(4,11)}

• Yes
• No