document.write( "Question 1031169: Two vertices of a triangle are (2,4) and (-2,3) and the area is 2 square units, the locus of the third vertex is?\r
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Algebra.Com's Answer #645903 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Let distance between those two points be the base for the triangle.\r
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\n" ); document.write( "\n" ); document.write( "\"sqrt%28%282-%28-2%29%29%5E2%2B%284-3%29%5E2%29\"
\n" ); document.write( "\"sqrt%2816%2B1%29\"
\n" ); document.write( "\"sqrt%2817%29\"\r
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\n" ); document.write( "\n" ); document.write( "An altitude could intersect the base ANYWHERE and you want to be sure that the altitude length will give area of 2 square units. Let a be the altitude length.\r
\n" ); document.write( "\n" ); document.write( "\"%281%2F2%29sqrt%2817%29%2Aa=2\"
\n" ); document.write( "\"a%2Asqrt%2817%29=4\"
\n" ); document.write( "\"a=4%2Fsqrt%2817%29\"\r
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\n" ); document.write( "\n" ); document.write( "THE PROBLEM HAS INFINITELY MANY SOLUTIONS. The altitude must be perpendicular to the base and be \"4%2Fsqrt%2817%29\".\r
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\n" ); document.write( "\n" ); document.write( "BASE
\n" ); document.write( "\"y-3=%28%284-3%29%2F%282-%28-2%29%29%29%28x-%28-2%29%29\"
\n" ); document.write( "\"y-3=%281%2F4%29%28x%2B4%29\"
\n" ); document.write( "and perpendicular line containing the altitude is , if you choose one endpoint on the altitude to be (2,4), \"y-4=-4%28x-2%29\"
\n" ); document.write( "\"y=-4x%2B8%2B4\"
\n" ); document.write( "\"y=-4x%2B12\"------line containing the altitude at base endpoint (2,4).\r
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\n" ); document.write( "\n" ); document.write( "An unknown point (x,-4x+12) must be distance \"sqrt%2817%29\" from point (2,4).
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\n" ); document.write( "\"sqrt%28%28x-2%29%5E2%2B%28-4x%2B12-4%29%5E2%29=sqrt%2817%29\"
\n" ); document.write( "\"sqrt%28%28x-2%29%5E2%2B%28-4%2B8%29%5E2%29=sqrt%2817%29\"
\n" ); document.write( "\"%28x-2%29%5E2%2B%288-4x%29%5E2=17\"
\n" ); document.write( "\"x%5E2-4x%2B4%2B64-64x%2B16x%5E2=17\"
\n" ); document.write( "\"17x%5E2-68x%2B68=17\"
\n" ); document.write( "\"17x%5E2-68x%2B57=0\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=%2868%2B-+sqrt%2868%5E2-4%2A17%2A57%29%29%2F%282%2A17%29\"\r
\n" ); document.write( "\n" ); document.write( "\"x=%2868%2B-+sqrt%28748%29%29%2F%282%2A17%29\"\r
\n" ); document.write( "\n" ); document.write( "\"x=%2868%2B-+2sqrt%28187%29%29%2F%282%2A17%29\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28x=34%2B-+sqrt%28187%29%29%2F17%29\"-----Use this the find the corresponding y coordinate values.\r
\n" ); document.write( "\n" ); document.write( "\"x=34%2B-+sqrt%2811%2A17%29%29%2F17\"------not simplifiable further
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