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Find the domain and range,

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asked Mar 14, 2014 in ALGEBRA 1 by abstain12 Apprentice

1 Answer

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The rational function


We know that all possible values of is domain of a function.

A rational function is simply fraction and in a fraction the denominator cannot be equal to 0 because it would be undefined.

To find which number make the fraction undefined create an equation where the denominator is not equal to zero.




So the domain of the function all real numbers except -1/3.

Range: The range is the set of all possible output values (usually the variable y, or sometimes expressed as f(x)), which result from using a particular function.

Domain set image

The range of the function  is all Real numbers.

answered Apr 4, 2014 by david Expert
edited Apr 4, 2014 by david

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