Question 1147039: Definition of Function
Given this set of ordered pairs {(1,2),(4,2),(7,3), _______}
2. Select an ordered pair from the list below that makes this NOT a function.
A.
(5,3)
B.
(1,8)
C.
(-1,2)
D.
(1,2)
3. Select an ordered pair from the list below that makes this function.
A.
(4,3)
B.
(1,1)
C.
(4,-2)
D.
(-2,3)
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! It would be (1, 8)
Only look at the x-values first. If they are all different, it is a function. If one wants to make it NOT a function, pick an x-value in this instance of 1,4, or 7. (1, 2) is the same, so that doesn't affect the function, but picking (1, 8) has two different values for f(x) and is NOT now a function.
(-2, 3).
The others have the same x value as one of the values in the function.
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