document.write( "Question 912598: Y is less than or equal to the absolute value of 4-X.\r
\n" ); document.write( "\n" ); document.write( "I know what to do when X is not negative like if it was Y is less than or equal to the absolute value of X-4. Can you help? Thank you.
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Algebra.Com's Answer #553967 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
\"y%3C=abs%284-x%29\"\r
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\n" ); document.write( "\n" ); document.write( "Two cases. If \"4-x%3E=0\" and if \"4-x%3C0\".\r
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\n" ); document.write( "\n" ); document.write( "CASE nonnegative argument\r
\n" ); document.write( "\n" ); document.write( "\"y%3C=abs%284-x%29\"
\n" ); document.write( "\"y%3C=4-x\"
\n" ); document.write( "\"y%3C=-x%2B4\"\r
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\n" ); document.write( "\n" ); document.write( "CASE negative argument\r
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\n" ); document.write( "\n" ); document.write( "\"y%3C=abs%284-x%29\"
\n" ); document.write( "\"y%3C=-4-%28-x%29\"
\n" ); document.write( "\"y%3C=-4%2Bx\"
\n" ); document.write( "\"y%3C=x-4\"\r
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\n" ); document.write( "\n" ); document.write( "The solution is the region in the plane which ---deleted wording--- two cases.\r
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\n" ); document.write( "\n" ); document.write( "SUMMARY OF THE INEQUALITES
\n" ); document.write( "Critical point seems to be for x=4.
\n" ); document.write( "\"highlight_green%28system%28y%3C=-x%2B4%2Cy%3C=x-4%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "The graphs show only the two individual cases; the ACTUAL solution is the region that ---deleted wording---.\r
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\n" ); document.write( "\n" ); document.write( "Nonnegative argument case:
\n" ); document.write( "\"graph%28300%2C300%2C-8%2C8%2C-8%2C8%2Cy%3C=-x%2B4%29\"\r
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\n" ); document.write( "\n" ); document.write( "Negative argument case:
\n" ); document.write( "\"graph%28300%2C300%2C-8%2C8%2C-8%2C8%2Cy%3C=x-4%29\"\r
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\n" ); document.write( "\n" ); document.write( "What the solution region should look like:
\n" ); document.write( "\"graph%28300%2C300%2C-8%2C8%2C-8%2C8%2Cy%3C=abs%284-x%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "(About the deleted wording; either of the two individual inequalities will satisfy the absolute value inequality given. This is a union).
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