Functions Intro Quiz

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)}

All of the x values of a relation are called what?

• Domain
• Range
• Relation
• Function

All of the y values of a relation are called what?

• Domain
• Range
• Relation
• Function

Which of the following is not a function?

• {(0,1), (1,2), (2,3), (3,4)}
• {(0,2), (1,3), (4,3), (1,2)}
• {(1,3), (4,2), (2,0), (3,4)}
• {(1,2), (2,2), (3,2), (4,2)}

Is this graph a function or not a function? 

• Function
• Not a Function

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {-4, -3, 1} R: {-4, 0, 1, 2}

• D:{-4, 0, 1, 2} R:{-4, -3, 1}

• D:{0, 1, 2, 3, 4} R:{-4, -3, 1}

Is this a function?

• Function
• Not a Function

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

f(x) = 4x + 5

f(4) = ?