Domain, Range & Function Values

Discussion in 'Algebra' started by nycmathguy, Jul 4, 2021.

  1. nycmathguy

    nycmathguy

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    See attachment.

    Question 8

    f(-1) = 4
    f(0) = 3
    f(1) = 6
    f(3) = 0

    Domain = [-1, 3]
    Range = (-00, 7]

    You say?

    Question 10

    f(-2) = -3
    f(1) = 0
    f(0) = 1
    f(2) = -2

    Domain = [-1, 1]
    Range = (-00, 1] U [1, 00)

    You say?

    20210704_093000.jpg
     
    nycmathguy, Jul 4, 2021
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  2. nycmathguy

    MathLover1

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    The domain is the set of all the values of x.
    The range is the set of all the values of y.

    Question 8

    f(-1) = 4
    f(0) = 3
    f(1) = 6
    f(3) = 0

    you have ordered pairs (x,y)=> (-1,4), (0,3), (1,6), (3,0)

    Domain => all x values: [-1,0,1, 3]
    Range => all y values: [0, 3,4,6]



    Question 10

    f(-2) = -3
    f(1) = 0
    f(0) = 1
    f(2) = -2

    Domain = [-2, 1.0,2]
    Range = [-3, -2,0,1]
     
    MathLover1, Jul 4, 2021
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  3. nycmathguy

    nycmathguy

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    You said:

    "The domain is the set of all the values of x."

    How did you arrive at this conclusion?

    You said:

    "The range is the set of all the values of y."

    How did you arrive at this conclusion?

    Note:

    I will also do 7 and 9 for extra practice.
     
    nycmathguy, Jul 4, 2021
    #3
  4. nycmathguy

    MathLover1

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    practice makes progress
     
    MathLover1, Jul 4, 2021
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    nycmathguy likes this.
  5. nycmathguy

    nycmathguy

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    I posted questions 7 and 9 in a new thread.
     
    nycmathguy, Jul 4, 2021
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