Question 958383: Which sets of ordered pairs represent y as a function of x?
A.{(-8,2),(0,5),(1,-5),(-4,7)}
B.{(5,7),(-7,3),(-6,3),(2,7)}
C.{(-3,4),(1,2),(-3,5),(6,2)}
D.{(1,4),(-1,4),(2,7),(-2,7)}
E.{(5,4),(2,3),(1,1),(2,4)}
Answer by Fombitz(32388)   (Show Source):
You can put this solution on YOUR website! For each x value, only one y value allowed.
True for A, B, D - Function of x.
False for C (-3,4) and (-3,5)- Not a function of x.
False for E (2,3) and (2,4) - Not a function of x.
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