In the previous post, we have learned how to analyze equations of functions and determine their domain and range. We have observed that the range of the functions and are the set of real numbers greater than or equal to since squaring a number or getting its absolute value results to or a positive real […]

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# Posts tagged with 'domain of a function'

## Understanding Domain and Range Part 1

The domain of a function is the set of x-coordinates of the points in the function. The range of the function f is the set of y-coordinates of the points in the function. So if we have a function f with points (-3, -2), (-1, 3), (2, 3), and (5,4), then the domain of the […]

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## Understanding the Concept of Inverse Functions

Let us consider the functions and . The table on the left shows the ordered pairs . We used and substitute them to in the second table. As we can see, all the values of are the same as those of in the first table. For example, if we have in the first table, applying , we […]

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