How to know the domain of a function

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3.3: Domain and Range

The domain of a function is the values for which the function is defined. For real-valued functions: first, you need to identify the values for which the function is not defined and then exclude
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How to find the domain of a function? Examples

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

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Write Domain and Range Given an Equation

The domain of a function is the collection of independent variables of x, and the range is the collection of dependent variables of y.

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How to find the domain of a function (video)

Step 1: Draw the graph. Step 2: Find the possible values of x where f (x) is defined. Here the x values start from -2 and ends in 2. Step 3: The possible values of x is the domain of the function. \therefore ∴ the domain of the circle

Domain and Range

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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