document.write( "Question 509035: Find the equation of the line in slope-intercept form that goes through the points (1,28) and (3,40). \n" ); document.write( "
Algebra.Com's Answer #341229 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "Note: is the first point . So this means that \"x%5B1%5D=1\" and \"y%5B1%5D=28\".\r
\n" ); document.write( "\n" ); document.write( "Also, is the second point . So this means that \"x%5B2%5D=3\" and \"y%5B2%5D=40\".\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=%2840-28%29%2F%283-1%29\" Plug in \"y%5B2%5D=40\", \"y%5B1%5D=28\", \"x%5B2%5D=3\", and \"x%5B1%5D=1\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=%2812%29%2F%283-1%29\" Subtract \"28\" from \"40\" to get \"12\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=%2812%29%2F%282%29\" Subtract \"1\" from \"3\" to get \"2\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=6\" 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=6\"
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