document.write( "Question 1207326: what is the equation of the perpendicular bisector of ag, where a (12,-1) and g(3,9)? \n" ); document.write( "
Algebra.Com's Answer #845135 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "what is the equation of the perpendicular bisector of ag, where \r
\n" ); document.write( "\n" ); document.write( "a (\"12\",\"-1\") and g(\"3\",\"9\")?\r
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\n" ); document.write( "\n" ); document.write( "the equation of the ag will have a slope\r
\n" ); document.write( "\n" ); document.write( "\"m=%289-%28-1%29%29%2F%283-12%29=-10%2F9\"\r
\n" ); document.write( "\n" ); document.write( "\"y-y%5B1%5D=+m%28x-x%5B1%5D%29\"....plug in slope and point g(\"3\",\"9\")\r
\n" ); document.write( "\n" ); document.write( "\"y-9=+-%2810%2F9%29%28x-3%29\"\r
\n" ); document.write( "\n" ); document.write( "\"y-9=+-%2810%2F9%29x-%28-%2810%2F9%293%29\"\r
\n" ); document.write( "\n" ); document.write( "\"y-9=+-%2810%2F9%29x%2B10%2F3\"\r
\n" ); document.write( "\n" ); document.write( "\"y=+-%2810%2F9%29x%2B10%2F3%2B9\"\r
\n" ); document.write( "\n" ); document.write( "\"y=+-%2810%2F9%29x%2B37%2F3\"\r
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\n" ); document.write( "\n" ); document.write( "the equation of the perpendicular bisector will have a slope negative reciprocal to \"-10%2F9+\"and it is\r
\n" ); document.write( "\n" ); document.write( "\"m=-1%2F%28-10%2F9%29=9%2F10\"\r
\n" ); document.write( "\n" ); document.write( "bisector will pass through midpoint of ag which is (\"%2812%2B3%29%2F2\", \"%28-1%2B9%29%2F2\")=(\"15%2F2\",\"4\")\r
\n" ); document.write( "\n" ); document.write( "use slope - point form\r
\n" ); document.write( "\n" ); document.write( "\"y-y%5B1%5D=+m%28x-x%5B1%5D%29\"....plug in slope and point (\"15%2F2\",\"4\")\r
\n" ); document.write( "\n" ); document.write( "\"y-4=%289%2F10%29%28x-15%2F2%29\"\r
\n" ); document.write( "\n" ); document.write( "\"y-4=%289%2F10%29x-27%2F4\"\r
\n" ); document.write( "\n" ); document.write( "\"y=%289%2F10%29x-27%2F4%2B4\"\r
\n" ); document.write( "\n" ); document.write( "\"y=%289%2F10%29x-11%2F4+\"=> answer\r
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