document.write( "Question 717316: or questions 4–5, is the relation a function?
\n" ); document.write( "4. {(4, 4), (13, 2), (–5, –12), (–7, 12)} (1 point)
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\n" ); document.write( "5. {(–3, –2), (12, 7), (8, 9), (12, 15)} (1 point)
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Algebra.Com's Answer #440234 by jsmallt9(3758)\"\" \"About 
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4. Yes. Each x-coordinate is different.
\n" ); document.write( "5. No. The ordered pairs (12, 7) and (12, 15) have the same x-coordinates but different y-coordiates.
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