SOLUTION: Which of the following relations are functions? I. X 2,0,0,2 Y0,1,4,9 II. X 0,1,4,9 Y2,0,0,2 III. X-1,0,1,2 Y4,-2,-4,-8 A. II and III B. I and III C. III only D

Algebra ->  Algebra  -> Equations -> SOLUTION: Which of the following relations are functions? I. X 2,0,0,2 Y0,1,4,9 II. X 0,1,4,9 Y2,0,0,2 III. X-1,0,1,2 Y4,-2,-4,-8 A. II and III B. I and III C. III only D      Log On

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 Question 459296: Which of the following relations are functions? I. X 2,0,0,2 Y0,1,4,9 II. X 0,1,4,9 Y2,0,0,2 III. X-1,0,1,2 Y4,-2,-4,-8 A. II and III B. I and III C. III only D. I only Answer by richard1234(5390)   (Show Source): You can put this solution on YOUR website!II and III are functions. I is not a function because the 0 corresponds to two different y-values.