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44bree
25.08.2019 •
Mathematics
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vanilla oreo for 58 points =d
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Ответ:
Neither set A nor set B represents a function.
Step-by-step explanation:
According to the definition of a function, for each input there exists a unique output. In other word for each value of x there exists unique value of y.
In set A we have four ordered pair (-4,5),(1,-1),(2,-2) and (2,3).
It means for x=2, we have two values of y, i.e., -2 and 3.
Since for a single value of x there exist more than one value of y, therefore set A is not a function.
In set B we have four ordered pair (2,2),(3,-2),(9,3) and (9,-3).
It means for x=9, we have two values of y, i.e., -3 and 3.
Since for a single value of x there exist more than one value of y, therefore set B is not a function.