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meggy Group Title

Which of the following relations is a function? A. { (1, 2), (1, 3), (1, 4), (1, 5) } B. { (1, 3), (2, 3), (4, 3), (9, 3) } C. { (5, 4), (-6, 5), (4, 5), (4, 0) } D. { (6, -1), (1, 4), (2, 3), (6, 1) }

  • one year ago
  • one year ago

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  1. fiedster23 Group Title
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    A function is when no input repeats which means no x coordinate can go to more than one y. So which one has a relation where the x doesn't repeat?

    • one year ago
  2. fiedster23 Group Title
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    There's only one choice where this happens!

    • one year ago
  3. meggy Group Title
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    yep no clue what or how tto do this

    • one year ago
  4. fiedster23 Group Title
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    In an ordered pair the first number is x and the second is y. So, if I have an ordered pair of (2,6). x is 2 and y is 6. Now look at your choices. the only relation that an x doesn't repeat is choice B, because your x's are: 1,2,4,9.

    • one year ago
  5. jasonxx Group Title
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    D, plot is on graph and you will get answer

    • one year ago
  6. meggy Group Title
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    so is the answer d or b

    • one year ago
  7. meggy Group Title
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    so is the answer d or b

    • one year ago
  8. meggy Group Title
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    so is the answer d or b

    • one year ago
  9. fiedster23 Group Title
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    D is wrong It is B. I am a math teacher!

    • one year ago
  10. fiedster23 Group Title
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    vertical line test also proves what I'm saying. If you plot the points and draw vertical lines through each point. Then each line should only go through one point. More than one point makes it NOT a function and if you graph D a vertical line would go through x at 6 twice which proves D is WRONG!

    • one year ago
  11. jasonxx Group Title
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    i dont know neither do i care yor a teacher or what, plot thes points on paer and get yor answer

    • one year ago
  12. fiedster23 Group Title
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    Learn to plot points correctly and know what a function is.

    • one year ago
  13. meggy Group Title
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    well same thing for thois one { (2, 6), (3, 9), (4, 2), (3, 6) } B. { (2, 8), (3, 6), (2, 4), (0, 2) } C. { (3, -2), (4, 7), (-2, 5), (-4, 5) } D. { (4, 7), (-2, 5), (1, 3), (-2, 1) }

    • one year ago
  14. jasonxx Group Title
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    lol thanks thats wat ma concern is plot it first

    • one year ago
  15. fiedster23 Group Title
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    Meggy if you ask your math teacher he will confirm what I'm saying! Answer is C on the second one. Same answer as above. Hope that helps.

    • one year ago
  16. meggy Group Title
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    oook and im online schooling i dont have teachers

    • one year ago
  17. jasonxx Group Title
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    ya can put yor questions here and everyone can help ya to figure out

    • one year ago
  18. meggy Group Title
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    Marty has a standard deck containing 52 cards. If Marty takes one card from the deck, what is the probability that he will select a king of hearts?

    • one year ago
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