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8.5.G Identify Functions Using Ordered Pairs, Tables, Mappings And Graphs

Quiz by Texas Education Agency

Grade 8
Mathematics
Texas Essential Knowledge and Skills (TEKS)

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6 questions
Show answers
  • Q1
    Which representation does not show y as a function of x?
    {(2,- 2 ), (3,-2 ), (7,-2 ), (11, −2 )}
    #texas/c186785f-14cc-4621-9fa8-4777a7649fcd/A.png
    #texas/c186785f-14cc-4621-9fa8-4777a7649fcd/D.png
    #texas/c186785f-14cc-4621-9fa8-4777a7649fcd/B.png
    60s
    8.5.G: Proportionality
  • Q2
    Which set of ordered pairs represents y as a function of x?
    {(0, 0), (1, 1), (1, 0), (2, 1)}
    {(2, -1), (4, -2), (6, -3), (8, -4)}
    {(3, 3), (3, 4), (4, 3), (4, 4)}
    {(1, -5), (1, 5), (2, -10), (2, -15)}
    60s
    8.5.G: Proportionality
  • Q3
    Which statement describes the mapping?
    Question Image
    The mapping does not represent y as a function of x, because there are more x-values than different corresponding y-values.
    The mapping represents y as a function of x, because each x-value corresponds to exactly one y-value.
    The mapping does not represent y as a function of x, because two of the x-values correspond to the same y-value.
    The mapping represents y as a function of x, because each y-value corresponds to exactly one x-value.
    60s
    8.5.G: Proportionality
  • Q4
    Which graph represents y as a function of x?
    #texas/6912142c-bdf4-491c-9ff9-55b2167125cd/B.png
    #texas/6912142c-bdf4-491c-9ff9-55b2167125cd/D.png
    #texas/6912142c-bdf4-491c-9ff9-55b2167125cd/A.png
    #texas/6912142c-bdf4-491c-9ff9-55b2167125cd/C.png
    60s
    8.5.G: Proportionality
  • Q5
    Which graph does NOT represent y as a function of x?
    #texas/0c8b66fb-191f-4339-82d4-20963bd3b54e/B.png
    #texas/0c8b66fb-191f-4339-82d4-20963bd3b54e/A.png
    #texas/0c8b66fb-191f-4339-82d4-20963bd3b54e/C.png
    #texas/0c8b66fb-191f-4339-82d4-20963bd3b54e/D.png
    60s
    8.5.G: Proportionality
  • Q6
    Which set of ordered pairs represents y as a function of x?
    {(2, 5), (3, 1), (2, 1), (4, 7)}
    {(3, 2), (4, 3), (5, 2), (2, 6)}
    {(1, 3), (3, 5), (2, 5), (1, 6)}
    {(4, 7), (4, 6), (4, 4), (4, 1)}
    60s
    8.5.G: Proportionality

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