document.write( "Question 1137813: The point (x,-1) is 13 units from the point (3,11). What are the possible values of x? \n" ); document.write( "
Algebra.Com's Answer #755701 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "given: The point (\"x\",\"-1\") is \"13\" units from the point (\"3\",\"11\"). \r
\n" ); document.write( "\n" ); document.write( "find: What are the possible values of \"x\"? \r
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\n" ); document.write( "\n" ); document.write( "use formula for distance between two points\r
\n" ); document.write( "\n" ); document.write( "\"d=sqrt%28%28x-x%5B1%5D%29%5E2%2B%28y-y%5B1%5D%29%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( "=> given distance \"d=13\", points (\"x\",\"-1\") and (\"3\",\"11\")\r
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\n" ); document.write( "\n" ); document.write( "\"13=sqrt%28%28x-3%29%5E2%2B%28-1-11%29%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( " \"13=sqrt%28%28x-3%29%5E2%2B%28-12%29%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( "\"13=sqrt%28%28x-3%29%5E2%2B144%29\"........square both sides\r
\n" ); document.write( "\n" ); document.write( "\"13%5E2=%28sqrt%28%28x-3%29%5E2%2B144%29%29%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"169=%28x-3%29%5E2%2B144\"\r
\n" ); document.write( "\n" ); document.write( "\"169-144=%28x%5E2-6x%2B9%29\"\r
\n" ); document.write( "\n" ); document.write( "\"25=x%5E2-6x%2B9\"\r
\n" ); document.write( "\n" ); document.write( "\"0=x%5E2-6x%2B9-25\"\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2-6x-16=0\"...factor\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B2x-8x-16=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2%2B2x%29-%288x%2B16%29=0\"\r
\n" ); document.write( "\n" ); document.write( "\"x%28x%2B2%29-8%28x%2B2%29=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x-8%29%28x%2B2%29=0\"\r
\n" ); document.write( "\n" ); document.write( "solutions:\r
\n" ); document.write( "\n" ); document.write( "\"x=8\" or \"x=-2\"-> the possible values of \"x\"\r
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\n" ); document.write( "\n" ); document.write( "so, your point are: (\"8\",\"-1\") and (\"-2\",\"-1\")\r
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\n" ); document.write( "\n" ); document.write( "check the distance between:\r
\n" ); document.write( "\n" ); document.write( "(\"8\",\"-1\") and (\"3\",\"11\")\r
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Solved by pluggable solver: Distance Between 2 points
The distance formula is \"sqrt%28%28%28x%5B2%5D-x%5B1%5D%29%5E2%29%2B%28%28y%5B2%5D-y%5B1%5D%29%5E2%29%29\". Plug in the numbers,\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%28%28%283-%288%29%29%5E2%29%2B%28%2811-%28-1%29%29%5E2%29%29\" \r
\n" ); document.write( "\n" ); document.write( "\"sqrt%28-5%5E2%2B12%5E2%29\" The distance is 13.\r
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\n" ); document.write( "\n" ); document.write( "(\"-2\",\"-1\") and (\"3\",\"11\")\r
\n" ); document.write( "\n" ); document.write( "\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "
Solved by pluggable solver: Distance Between 2 points
The distance formula is \"sqrt%28%28%28x%5B2%5D-x%5B1%5D%29%5E2%29%2B%28%28y%5B2%5D-y%5B1%5D%29%5E2%29%29\". Plug in the numbers,\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%28%28%283-%28-2%29%29%5E2%29%2B%28%2811-%28-1%29%29%5E2%29%29\" \r
\n" ); document.write( "\n" ); document.write( "\"sqrt%285%5E2%2B12%5E2%29\" The distance is 13.\r
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