How to Find the Domain of a Function

Hello friends, in mathematics we will study about the range and domain of function. Here we will discuss how to find the domain of a function. Function can be defined as a tool used to demonstrate the relationship between values. Now we will see how to find the domain of a function. Generally, functions are defined as f (p) where ‘p’ is the value you assign it. Like, f (p) = p / 2 ('f' of 'p' is divided by 2) is a function, because for every value of 'p' you get another value 'p / 2. If we put different values of function 'p'. First of all if we put value of 'p' as 2 then we get:

⇒f (2) = 1,
⇒f (4) = 2.
To find domain of function it is necessary to learn what the domain of a function is. When we select the entire x - coordinates values in the given function, then these x- coordinates values are known as domain of a function. In same way, the possible ‘y’ coordinate values are said to be the range of a function. Suppose we have some values (6, -5), (-9, 4), (11, -9), (-15, 1), then domain of function can be found as:

The domain of a given function = 6, -9, 11, -15.

Range is all ‘y’ coordinate values, (know more about Domain of a function, here)

Range = -5, 4, -9, 1. Now we will discuss how to find domain of a function in details. We need to follow some steps to find domain of a function:

Step 1: First of all we have to assume a function that contains ‘x’ and ‘y’ coordinates.

Step 2: As we know the domain of a function is all ‘x’ coordinates values.

So, we can say that in a function if values of ‘x’ and ‘y’ coordinates are known then we can easily find the domain and range of a function. This is all about the domain of a function.

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