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Lilabon

  • one year ago

[3.05] Which of the following does not represent a function? x −12 −5 11 14 17 y −5 −2 −2 8 34 x −10 1 3 8 10 y −2 2 7 8 10 x 5 10 10 12 18 y 1 4 22 5 4 x 4 5 6 8 10 y 4 −4 12 −8 6

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  1. precal
    • one year ago
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    plot your points and use the vertical line test

  2. precal
    • one year ago
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    |dw:1360028218239:dw|

  3. precal
    • one year ago
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    |dw:1360028235778:dw|

  4. precal
    • one year ago
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    |dw:1360028261287:dw|

  5. precal
    • one year ago
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    |dw:1360028290421:dw|NOT A FUNCTION

  6. Lilabon
    • one year ago
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    So the last one?

  7. precal
    • one year ago
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    |dw:1360028443906:dw|

  8. precal
    • one year ago
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    notice same x can not go to 2 different y values

  9. Lilabon
    • one year ago
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    So it's not the last one?

  10. precal
    • one year ago
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    last one is a function

  11. precal
    • one year ago
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    |dw:1360028741222:dw|I just graphed the last one for you and it passes the vertical line test

  12. precal
    • one year ago
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    |dw:1360028821861:dw|passes vertical line test since one vertical line does not cross 2 points at the same time

  13. Lilabon
    • one year ago
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    So it's the 3 rd one then?

  14. precal
    • one year ago
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    correct because of (10,4) and (10,22) that is the exact location that the vertical line test will fail

  15. Lilabon
    • one year ago
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    Thank You SOOOO MUCH,,,

  16. precal
    • one year ago
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    yw

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