document.write( "Question 205953: What is the slope intercept equation of the line that contains the points (5, 17) and (9, 13 \n" ); document.write( "
Algebra.Com's Answer #155530 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "First let's find the slope of the line through the points and \r
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\n" ); document.write( "\n" ); document.write( "Note: is the first point . So this means that \"x%5B1%5D=5\" and \"y%5B1%5D=17\".\r
\n" ); document.write( "\n" ); document.write( "Also, is the second point . So this means that \"x%5B2%5D=9\" and \"y%5B2%5D=13\".\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=%2813-17%29%2F%289-5%29\" Plug in \"y%5B2%5D=13\", \"y%5B1%5D=17\", \"x%5B2%5D=9\", and \"x%5B1%5D=5\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=%28-4%29%2F%289-5%29\" Subtract \"17\" from \"13\" to get \"-4\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=%28-4%29%2F%284%29\" Subtract \"5\" from \"9\" to get \"4\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=-1\" 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=-1\"\r
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\n" ); document.write( "\n" ); document.write( "Now let's use the point slope formula:\r
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\n" ); document.write( "\n" ); document.write( "\"y-y%5B1%5D=m%28x-x%5B1%5D%29\" Start with the point slope formula\r
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\n" ); document.write( "\n" ); document.write( "\"y-17=-1%28x-5%29\" Plug in \"m=-1\", \"x%5B1%5D=5\", and \"y%5B1%5D=17\"\r
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\n" ); document.write( "\n" ); document.write( "\"y-17=-1x%2B-1%28-5%29\" Distribute\r
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\n" ); document.write( "\n" ); document.write( "\"y-17=-1x%2B5\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"y=-1x%2B5%2B17\" Add 17 to both sides. \r
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\n" ); document.write( "\n" ); document.write( "\"y=-1x%2B22\" Combine like terms. \r
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\n" ); document.write( "\n" ); document.write( "\"y=-x%2B22\" Simplify\r
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\n" ); document.write( "\n" ); document.write( "So the equation that goes through the points and is \"y=-x%2B22\"\r
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