There are also many YouTube videos that can show you How to know the domain of a function.
Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the [latex]x[/latex]-axis. The
The domain of a function is the collection of independent variables of x, and the range is the collection of dependent variables of y.
The identity functions have the same domain and range as the identity functions. If the input value is 5, the output value will be 5 as well; if the input value is 0, the output value will be 0.
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