document.write( "Question 458272: Find the slope of the line containing the given pair of points.(1, 2) and (9, 12) \n" ); document.write( "
Algebra.Com's Answer #314360 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Note: is the first point . So this means that \"x%5B1%5D=1\" and \"y%5B1%5D=2\".\r
\n" ); document.write( "\n" ); document.write( "Also, is the second point . So this means that \"x%5B2%5D=9\" and \"y%5B2%5D=12\".\r
\n" ); document.write( "
\n" ); document.write( "
\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
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"m=%2812-2%29%2F%289-1%29\" Plug in \"y%5B2%5D=12\", \"y%5B1%5D=2\", \"x%5B2%5D=9\", and \"x%5B1%5D=1\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"m=%2810%29%2F%289-1%29\" Subtract \"2\" from \"12\" to get \"10\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"m=%2810%29%2F%288%29\" Subtract \"1\" from \"9\" to get \"8\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"m=5%2F4\" Reduce\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "So the slope of the line that goes through the points and is \"m=5%2F4\"
\n" ); document.write( "
\n" ); document.write( "
\n" );