Question 1131115: Which of the following is not a function?
I. {(0,1),(1,2)(2,2)}. II. x^2 = y. III. x = 0
A. I
B. II
C. III
D. I and II
E. II and III
Found 2 solutions by Boreal, stanbon:
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! x=0. With these types of questions, look to see if there is the same x repeated. If so, and the y-values are different, then it is not a function.
C III
Answer by stanbon(75887)  (Show Source):
You can put this solution on YOUR website! Which of the following is not a function?
I. {(0,1),(1,2)(2,2)}. II. x^2 = y. III. x = 0
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Ans:: III because it has points (0,0),(0,1),(0,2) etc.
It does not have a unique y-value for each value of x.
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Cheers,
Stan H.
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A. I
B. II
C. III
D. I and II
E. II and III
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