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Quiz no. 1 Relations and Functions

Quiz by Arvin Gara

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15 questions
Show answers
  • Q1

    In mathematics, what is a function?

    A sequence of numbers

     A variable with no defined value

    A mathematical operation

    A set of ordered pairs

    60s
  • Q2

    Which of the following is NOT a way to represent a function?

    Percentage

    Table

    Equation

      Graph

    60s
  • Q3

    If f(x) = 2x - 1, what is the value of f(3)?

    5

    7

    4

    6

    60s
  • Q4

    Which relation is NOT a function?

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

    {(1,-5), (3,1), (-5,4), (4,-2)}

    {(1,-5), (-1,6), (1,5), (6,-3)}

    {(2,7), (3,7), (4,7), (5,8)}

    30s
  • Q5

    All of the x values or inputs are called what?

    Relation

    Range

    Domain

    Function

    60s
  • Q6

    All of the y values or outputs are called what?

    Domain

    Relation

    Range

    Function

    60s
  • Q7

    What is the range of the relation shown on the mapping diagram?

    Question Image

    R:{3, 5, 8}

    R:{3, 5, 8, 12}

    R:{all real numbers}

    R:{-7, 11}

    60s
  • Q8

    What domain value corresponds to the range value -2 in the given relation?

    {(-1,2), (-2,4), (2,5), (0,-2), (2,0)}

    -2

    0

    4

    2

    60s
  • Q9

    A function that assigns each input to exactly one output is called:

    None of the above

     One-to-one function

     Onto function

     Many-to-one function

    60s
  • Q10

    Is the relation a function? Why.

    Question Image

    Yes, 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.

    No, because the x-value 11 has two y-values paired with it.

    Yes, because each x-value has only one y-value paired with it.

    60s
  • Q11

    Is this mapping a function or not a function? 

    Question Image

    Function

    Not a Function

    60s
  • Q12

    Is this mapping a function or not a function? 

    Question Image

    Function

    Not a Function

    60s
  • Q13

    Determine if the following relation describes a function.

    Question Image

    Not a Function

    Function

    60s
  • Q14

    Determine if the following relation represents a function.

    Question Image

    Not a Function

    Function

    60s
  • Q15

    Is this graph a function or not a function? 

    Question Image

    Function

    Not a Function

    60s

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