anonymous
  • anonymous
Determine which relation is a function. A. {(–5, 1), (–5, 0), (–2, 1), (–1, 4), (6, 2)} B. {(–5, 1), (–2, 0), (–2, 2), (3, 4), (6, 2)} C. {(–5, 1), (–2, 0), (–1, 1), (2, 4), (6, 3)} D. {(–5, 3), (–2, 0), (–1, 2), (6, 4), (6, 3)}
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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UsukiDoll
  • UsukiDoll
we don't have a function if our x contains repeating numbers
anonymous
  • anonymous
so do you get the question or not.
UsukiDoll
  • UsukiDoll
yes I do.. but I'm here to guide you through the process of answering this question. I can't give direct answers because it's against OpenStudy's Code of Conduct.

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More answers

anonymous
  • anonymous
ok
UsukiDoll
  • UsukiDoll
so let's grab one of the choices and draw a chart version
UsukiDoll
  • UsukiDoll
|dw:1435925354834:dw| do you see any repeating numbers in this chart?
anonymous
  • anonymous
1
UsukiDoll
  • UsukiDoll
looking at the x-values, we notice that there is a repeat, so it can't be a function.
UsukiDoll
  • UsukiDoll
|dw:1435925483020:dw|
anonymous
  • anonymous
your right so it cant be A.
UsukiDoll
  • UsukiDoll
ok... next choice |dw:1435925530800:dw|
UsukiDoll
  • UsukiDoll
are there any repeating numbers?
anonymous
  • anonymous
cant be same numbers in x.
UsukiDoll
  • UsukiDoll
correct.. so what is the repeating number?
anonymous
  • anonymous
2
Jack1
  • Jack1
mate, just word to the wise: comments like "so do you get the question or not" is a good way to get people to not wanna assist u hey... jus sayin' @speartonion
UsukiDoll
  • UsukiDoll
ok that's fine.. it's actually -2.. but it's still partially correct.
anonymous
  • anonymous
sorry
UsukiDoll
  • UsukiDoll
|dw:1435925676417:dw|
UsukiDoll
  • UsukiDoll
well I forgive you :) Now next choice. ...
anonymous
  • anonymous
its c
UsukiDoll
  • UsukiDoll
|dw:1435925712679:dw|
UsukiDoll
  • UsukiDoll
yup... due to unique numbers and no repeats we have our function .
anonymous
  • anonymous
thanks for your help.
UsukiDoll
  • UsukiDoll
you're welcome :)

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