document.write( "Question 1186975: Find the equation of the line passing through the point (−8,4) and
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Algebra.Com's Answer #817934 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Instead of doing your problem for you, I'll do one using different numbers which\r\n" );
document.write( "you can use as a model to do yours by.  Here's the problem I'll do:

\n" ); document.write( "Find the equation of the line passing through the point (−9,5) and
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document.write( "First we find the slope of the line y=−27x−623 by comparing it to y = mx+b,\r\n" );
document.write( "and we see that the slope m is -27.\r\n" );
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document.write( "The slope of a line perpendicular to a given line has a slope which is the\r\n" );
document.write( "negative reciprocal of the slope of the given line.  So we take the reciprocal\r\n" );
document.write( "of -27, which is -1/27, and change its sign.  So the slope of the perpendicular\r\n" );
document.write( "line is 1/27.  Since it passes through (-9,5), we use to point-slope form which\r\n" );
document.write( "says the equation of the line through (x1,y1) and having\r\n" );
document.write( "slope m is:\r\n" );
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document.write( "\"y-y%5B1%5D\"\"%22%22=%22%22\"\"m%28x%5E%22%22-x%5B1%5D%29\"\r\n" );
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document.write( "In this case (x1,y1) = (-9,5), and m = 1/27\r\n" );
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document.write( "\"y-%285%29\"\"%22%22=%22%22\"\"%281%2F27%29%28x%5E%22%22-%28-9%29%29\"\r\n" );
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document.write( "\"y-5\"\"%22%22=%22%22\"\"%281%2F27%29%28x%5E%22%22%2B9%29\"\r\n" );
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document.write( "That's in point-slope form.\r\n" );
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document.write( "Now do yours the same way using your numbers.\r\n" );
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document.write( "Edwin
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