document.write( "Question 828323: Write the equation of the line in slope-intercept form, given the following information. \r
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\n" ); document.write( "\n" ); document.write( "16. the line passes through the points P and Q. P(11,8) Q(-1,8) \n" ); document.write( "
Algebra.Com's Answer #499245 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Slope-intercept form is \r\n" );
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document.write( "y = mx + b  where the m and the b represent numbers:\r\n" );
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document.write( "y - 9 = \"1%2F2\"(x + 6)\r\n" );
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document.write( "Distribute the fraction \"1%2F2\" into the parentheses:\r\n" );
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document.write( "y - 9 = \"1%2F2\"x + 3\r\n" );
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document.write( "Add 9 to both sides:\r\n" );
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document.write( "    y = \"1%2F2\"x + 12 \r\n" );
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document.write( "The slope is \"1%2F2\" and the y intercept is (0,12)\r\n" );
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document.write( "First we use the slope formula:\r\n" );
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document.write( "m = \"%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29\"\r\n" );
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document.write( "where (x1,y1) = (11,8)\r\n" );
document.write( "and where (x2,y2) = (-1,8)\r\n" );
document.write( "m = \"%288-8%29%2F%28-1-11%29\"\r\n" );
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document.write( "m = \"0%2F%28-12%29\"\r\n" );
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document.write( "m = 0\r\n" );
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document.write( "Point-slope formula:\r\n" );
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document.write( "y - y1 = m(x - x1)\r\n" );
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document.write( "where m = 0 and (x1,y1) = (11,8)\r\n" );
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document.write( "y - 8 = 0(x - 11)\r\n" );
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document.write( "Distribute the 0\r\n" );
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document.write( "y - 8 = 0x - 0\r\n" );
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document.write( "Add 8 to both sides:\r\n" );
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document.write( "    y = 0x + 8\r\n" );
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document.write( "You can write that without the 0x as \r\n" );
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document.write( "y = 8 \r\n" );
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document.write( "but written that way doesn't show the slope of m = 0\r\n" );
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document.write( "Edwin
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