document.write( "Question 1127142: For f(x)=2x/x-2 answer the following questions.
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document.write( "4. What is the domain of f? \n" );
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Algebra.Com's Answer #743498 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "The domain of a function is the set of values of x for which the function can be evaluated. \n" ); document.write( "For a rational function like this (a fraction with variables in the numerator and denominator), the domain is all values EXCEPT any that make the denominator 0, because division by 0 is not allowed. \n" ); document.write( "For this function, the only value that makes the denominator 0 is x=2, so the domain of the function is all real numbers except 2. \n" ); document.write( "In algebraic notation: \n" ); document.write( "In interval notation: (-infinity, 2) U (2, infinity) \n" ); document.write( " |