F4 Functions

Is this mapping a function or not a function? 

• Function
• Not a Function 

Is the relation a function? 
{(4,5), (4,-7), (4,2), (4,0), (4,9)}

• Yes
• No

Is the relation a function? 
{(4,5), (4,-7), (4,2), (4,0), (4,9)}

• Yes
• No

Is this table 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 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.

Evaluate f(-2) if f(x) = x²+ 3.

• -1
• 1
• 7
• -7

Is relation shown a function?

• YES
• NO

Is this graph a function or not a function? 

• Function 
• Not a Function 

Which image is NOT the graph of a function?

• 
• 
• 
• 

What is the domain in inequality notation?

• ( -4 , 4 )

• [ 1 , -3 )

• -4 < x < 4

• 1 ≥ y > -3