Unit 3: Linear Relationships

Which of the following is 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 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.

Which of these tables represent a function?

• A
• B
• C
• D

Which graph is NOT a function?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Which set of ordered pairs 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)}

Find the slope of the line.

• -2
• 2
• -1
• 1

Find the slope of the line.

• -5/4
• 5/4
• -4/5
• 4/5

Find the slope of the line.

• Undefined
• 0
• 1
• -1

Find the slope of the line.

• Undefined
• 0
• 1
• -1