document.write( "Question 461329: Find the slope, if it exists, of the line containing the pair of pints (7,2)(9,-2) \n" ); document.write( "
Algebra.Com's Answer #316394 by algebrahouse.com(1659)\"\" \"About 
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y2 - y1
\n" ); document.write( "--------- = slope
\n" ); document.write( "x2 - x1\r
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\n" ); document.write( "\n" ); document.write( "(7,2) , (9,-2)\r
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\n" ); document.write( "\n" ); document.write( "-2 - 2
\n" ); document.write( "-------- = slope {substituted into slope formula}
\n" ); document.write( "9 - 7\r
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\n" ); document.write( "\n" ); document.write( "-4
\n" ); document.write( "--- = slope {subtracted on top and bottom}
\n" ); document.write( "2\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "= -2 {divided}
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