document.write( "Question 670323: if f(x)=-x-, find f(4) \n" ); document.write( "
Algebra.Com's Answer #416858 by ReadingBoosters(3246)\"\" \"About 
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Is this f(x) = \"abs%28x%29\"?
\n" ); document.write( "f(4) = \"abs%284%29\"
\n" ); document.write( "= 4
\n" ); document.write( "...
\n" ); document.write( "Is this f(x) = \"abs%28-x%29\"?
\n" ); document.write( "f(4) = \"abs%28-4%29\"
\n" ); document.write( "= 4
\n" ); document.write( "………
\n" ); document.write( "Delighted to help.
\n" ); document.write( "-Reading Boosters
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\n" ); document.write( "homeworkhelpers@readingboosters.com
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