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Relations and Functions 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 Is this a function? Cannot be determined Yes No 4 -4 8 -8 4 -4 8 -8 12 -12 Is this a function? Cannot be determined Yes No Is this a function? Yes No Cannot be determined Is this a function? Cannot be determined Yes No Cannot be determined Yes No Is this a function? Function? Yes No Cannot be determined No Cannot be determined Yes Is this a function? When determining whether a relation is a function, which coordinate cannot repeat? x-coordinate y-coordinate x- and y-coordinates Remember: a relation is a set of ordered pairs. Is this relation a function? {(1, 4), (-5, 2), (4, 1), (1, 6)} Yes No, because "1" repeats No, beause "4" repeats Cannot be determined |