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Can someone please help me with this? I can’t understand it.

Can someone please help me with this? I can’t understand it.-example-1
User RossC
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1 Answer

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The domain of a relation or a function is the set of all possible values for an input in that relation/function.

Notice from the graph that the function runs for x-values from -1 to 5, inclusive.

Hence, the domain is:


\lbrack-1,5\rbrack

The range of a relation or function is the set of all possible values that can be the result of a relation or function.

These are the range of y-values of the graph, which is from -2 to 4, inclusive.

Hence, the range is:


\lbrack-2,4\rbrack

The domain is [-1,5], the range is [-2,4].

Re-write using compound inequality:


\begin{gathered} \text{Domain: }-1\le x\le5 \\ \text{Range: }-2\le y\le4 \end{gathered}

User Djalas
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