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How to find domain and range of f to define y as function of x

How to find domain and range of f to define y as function of x-example-1

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y is a function of x if there is one distinct value of y in every value of x.

From the table, there are NO same y values so y is a function of x.

The domain is the set of x values and range is the set of y values

Answer :

Yes, D = {-1, 0, 1, 2, 3}; R = {-7, -5, 3, 5, 9}

User Erik Kaju
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