document.write( "Question 544867: Determine whether the following relation is a function. (2,4) (4, 6) (6,8) (8,10) \n" ); document.write( "
Algebra.Com's Answer #355309 by fcabanski(1391)\"\" \"About 
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It is a function if each x value (x,y) has a unique y value. Since all the x values have unique y values, it is a function.
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