Functions - Topic 7-1 to 7-3

Which is true of functions?

• No more than one input can result in a specific output (Two x values CANNOT result in the same y value)

• Every input has only ONE output (each x value has only ONE y value)

• Inputs have different outputs every time

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

• Function
• Not a Function

Is this mapping a function or not a function? 

• 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

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

Is this graph 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 graph a function or not a function? 

• Function
• Not a Function