document.write( "Question 283620: please help me find the domain range and asymtope of this function\r
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Algebra.Com's Answer #205834 by user_dude2008(1862)\"\" \"About 
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f(x)= -e^-x\r
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\n" ); document.write( "\n" ); document.write( "Domain: All real numbers\r
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\n" ); document.write( "\n" ); document.write( "Asymptote: y = 0\r
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