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kayser Group Title

Which of the following represents a relation that is NOT a function? A. X -8 -4 6 11 Y 26 24 32 26 B. X 6 -4 11 -8 Y 26 24 32 26 C. X -8 -4 -8 4 Y 26 24 32 26 D. X -8 -4 -2 4 Y 26 24 32 26

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  1. whatevs Group Title
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    I think its D

    • 2 years ago
  2. whatevs Group Title
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    it c

    • 2 years ago
  3. whatevs Group Title
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    It's C

    • 2 years ago
  4. jim_thompson5910 Group Title
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    It's actually choice C -8 maps to both 26 and 32 at the same time

    • 2 years ago
  5. kayser Group Title
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    Aight thank you,

    • 2 years ago
  6. ktklown Group Title
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    Something is a function if you can always answer the question "For a given X, what's the value of Y"? (1, 2) (3, 2) --> What's the value if x=1? It's 2. What's the value if x=3? It's 2. Since you can always answer the question, it's a function. (1, 8) (1, 9) --> What's the value if x=1? You don't know. it could be either 8 or 9. Therefore it's not a function.

    • 2 years ago
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