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Identifying Functions, Domain, and Range

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  • A function maps each ________ to exactly one dependent variable.
    independent variable
  • Is this a function?
    yes
  • What is the domain?
    {-9, -7, -2, 0, 3, 9, 11}
  • Is this a function?
    yes
  • Is this a function?
    no
  • What is the range?
    y is less than 1 AND greater than or equal to -4
  • What is the range?
    { -8, -7, -5, 9, 19}
  • What is the range?
    All real numbers
  • A ________ is a relationship between independent and dependent variables.
    Relation
  • Is this a function?
    yes
  • Is this a function?
    no
  • What is the range?
    y is greater than or equal to -6 and less than or equal to 6
  • What is the domain?
    x is greater than or equal to -15 and less than or equal to 20
  • What is the domain?
    x is greater than 0 AND less than or equal to 4
  • Is this a function?
    no
  • A _______ is a relation where each input has exactly one output.
    Function
  • Is this a function?
    no
  • Is this a function?
    yes
  • Is this a function?
    yes
  • Is this a function?
    no
  • What is the domain?
    x is less than or equal to 16 AND greater than or equal to -16
  • What is the domain?
    x is greater than or equal to -6 and less than 2
  • What is the domain?
    All real numbers
  • What is the range?
    y is greater than -5 and less than or equal to 25
  • Is this a function?
    yes
  • What is the range?
    y is less than or equal to 4 AND greater than or equal to -4
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