what is the domain and range of y= x- 1? explain.

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Solution

$Consider the following function : y = x - 1 Note that the domain is the set of all points at which the function is defined . and the range is set of all functional values at the points of domain . Here the given function is defined for all real numbers and the functional values are also real numbers . So the domain of the given function is R (the set of all real numbers) and the range of the function is also R (the set of all real numbers)$

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y = \sqrt{x - 1}

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