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muscrat123

  • one year ago

Which of the sets of ordered pairs represents a function? A = {(−4, 5), (1, −1), (2, −2), (2, 3)} B = {(2, 2), (3, −2), (9, 3), (9, −3)} @pooja195

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  1. Nnesha
    • one year ago
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    in order to relation be a function x values shouldn't repeat

  2. muscrat123
    • one year ago
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    so the answer is b?

  3. muscrat123
    • one year ago
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    Which of the sets of ordered pairs represents a function? A = {(−4, 5), (1, −1), (2, −2), (2, 3)} B = {(2, 2), (3, −2), (9, 3), (9, −3)} Only A Only B Both A and B Neither A nor B

  4. Nnesha
    • one year ago
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    (x,y) first number represent x-coordinate

  5. muscrat123
    • one year ago
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    is the final answer B?

  6. Nnesha
    • one year ago
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    why is it not A ?

  7. muscrat123
    • one year ago
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    because on this group : A = {(−4, 5), (1, −1), (2, −2), (2, 3)} , the number 2 appears twice in the x coordinate @Nnesha

  8. Nnesha
    • one year ago
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    yep that's right!! so now focus on B set

  9. muscrat123
    • one year ago
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    ?

  10. Nnesha
    • one year ago
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    2 appears twice in first set right now Set B is there any x number that appears more than onc ?

  11. muscrat123
    • one year ago
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    no

  12. Nnesha
    • one year ago
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    mhmm

  13. muscrat123
    • one year ago
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    so group B is the only function?

  14. Nnesha
    • one year ago
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    \[\huge\rm B = {(\color{reD}{2}, 2), (\color{reD}{3}, −2), (\color{reD}{9}, 3), (\color{reD}{9}, −3)} \] any x values appears more than once ?

  15. muscrat123
    • one year ago
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    oh oops! yes

  16. Nnesha
    • one year ago
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    ^

  17. muscrat123
    • one year ago
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    so D?

  18. Nnesha
    • one year ago
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    yep

  19. muscrat123
    • one year ago
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    k. thx can u help with a couple more? @Nnesha

  20. Nnesha
    • one year ago
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    i'll try.

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