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How do i find the domain and range of this and determine whether they are real numbers?

How do i find the domain and range of this and determine whether they are real numbers-example-1
User NiRR
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1 Answer

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Domain

The domain is the set of all points over which a function is defined. This contains the x-values of the graph.

Hence, the domain of the ellipse is


\lbrack-7.-1\rbrack

Range

The set of values the function takes on as output. This consists of the y-values of the function.

Hence, the range of the ellipse is,


\lbrack-8,-4\rbrack

Both the values of the domain and the range are real numbers.

User Harish Reddy
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