quantxll quantxll

12-10-2018
Mathematics

contestada

which of the following are functions

A. [(-2,3)], [(-1,5)], [(0,7)], [(1,9)]
B. [(-3,3)], [(3,3)], [(0,0)], [(1,1)], [(-1,1)]
C. [(-2,5)], [(-1,4)], [(0,3)], [(-1,2)], [(-2,1)]

Respuesta :

OmegaAzzy OmegaAzzy

12-10-2018

The correct answer is A and B.

Both A and B represent functions, as the same x value is not used twice.

However, with option C, the x value -2 is used twice, and thus it is not a function.

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