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Answer:
The range is {4,2,0,-2}
Step-by-step explanation:
The domain of the function is given as {-1,0,1,2}.
The function is defined as
The range of a function is the set of all values of y that corresponds to an element in the domain.
We substitute each element from the domain to obtain, the corresponding element in the range;
When x=0,
When x=1,
When x=2,
Therefore the range is {4,2,0,-2}