A1 - Review of Relations & Functions; Linear Functions (Graham)

Which relation is NOT a function?

• {(1,-5), (3,1), (-5,4), (4,-2)}
• {(2,7), (3,7), (4,7), (5,8)}
• {(1,-5), (-1,6), (1,5), (6,-3)}
• {(3,-2), (5,-6), (7,7), (8,8)}

Is this table a function or not a function? 

• Function
• Not a Function

Does the graph represent a function?

• Yes, because the vertical line test shows there are no repeating input values
• No, because the vertical line test shows there are repeating input values

Which of the following does not represent a function

• 
• 
• 
• 

What is the DOMAIN of this relation?

• Can Not Be Determined

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.

If f(x) = 2x + 1, find f(1).

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

• Function
• Not a Function

Is this graph a function or not a function? 

• Function
• Not a Function

Which graph represents a function?

• 
• 
• 
•