document.write( "Question 554939: Which equation is an equation of the line that passes through the point (2, -1) and has a slope of -1? \n" ); document.write( "
Algebra.Com's Answer #361565 by jim_thompson5910(35256)\"\" \"About 
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\"y+=+mx%2Bb\"\r
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\n" ); document.write( "\n" ); document.write( "\"-1+=+%28-1%29%282%29%2Bb\"\r
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\n" ); document.write( "\n" ); document.write( "\"-1+=+-2%2Bb\"\r
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\n" ); document.write( "\n" ); document.write( "\"-1%2B2+=+b\"\r
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\n" ); document.write( "\n" ); document.write( "\"1+=+b\"\r
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\n" ); document.write( "\n" ); document.write( "\"b+=+1\"\r
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\n" ); document.write( "\n" ); document.write( "So the equation of the line is \"y+=+-x%2B1\"\r
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