document.write( "Question 309983: find the slope if it exists (5,4) and (7,-10)
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Algebra.Com's Answer #221713 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "Note: is the first point . So this means that \"x%5B1%5D=5\" and \"y%5B1%5D=4\".\r
\n" ); document.write( "\n" ); document.write( "Also, is the second point . So this means that \"x%5B2%5D=7\" and \"y%5B2%5D=-10\".\r
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\n" ); document.write( "\n" ); document.write( "\"m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29\" Start with the slope formula.\r
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\n" ); document.write( "\n" ); document.write( "\"m=%28-10-4%29%2F%287-5%29\" Plug in \"y%5B2%5D=-10\", \"y%5B1%5D=4\", \"x%5B2%5D=7\", and \"x%5B1%5D=5\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=%28-14%29%2F%287-5%29\" Subtract \"4\" from \"-10\" to get \"-14\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=%28-14%29%2F%282%29\" Subtract \"5\" from \"7\" to get \"2\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=-7\" Reduce\r
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\n" ); document.write( "\n" ); document.write( "So the slope of the line that goes through the points and is \"m=-7\"\r
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