Functions Day 1

Is this mapping 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
• Not a Function

$f\left(x\right)=5x-12$ What is $f\left(-4\right)$

• -32

• -3

• -12

• 3

Is this is a function or not a function?

• Function
• Not a Function

Is this a function or not a function?

• Function
• Not a Function

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each y-value has only one x-value paired with it.

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

Is this graph a function or not a function? 

• Function
• Not a Function

Is this table a function or not a function? 

• Function
• Not a Function