Which of the following is a function? A.) { (-2, - 4/5), (-1,-1), (0,0), (-1,-1) } B.) { (-2,0), (0,1/2), (0,3/4), (1,1) } C.) { (-2,1), (-1,0), (0,1), (-2,2) } D.) { (-2,4), (-1,1), (0,0), (1,1) }

Question

Mathematics

Roger Garza

27 September, 08:06

Which of the following is a function? A.) { (-2, - 4/5), (-1,-1), (0,0), (-1,-1) } B.) { (-2,0), (0,1/2), (0,3/4), (1,1) } C.) { (-2,1), (-1,0), (0,1), (-2,2) } D.) { (-2,4), (-1,1), (0,0), (1,1) }

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Answers (1)

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Manuel Marks · Answer 1

D.

Step-by-step explanation:

A function, by the easy-to-understand definition, is a relation where no x values are shared. The only set where each x value is different is in D. All the other sets share the same x value. Example: Set C has coordinates (-2, 1) and (-2, 2). The x coordinates are the same, so this isn't a function. It is only a relation.