document.write( "Question 804175: Find the equation of the line below. Arrange your answer in the form y = mx + b, where b is the constant.
\n" ); document.write( "The coordinates are (1,2) and (-1,-2) \n" ); document.write( "
Algebra.Com's Answer #484637 by mananth(16946)\"\" \"About 
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(1,2) and (-1,-2)\r
\n" ); document.write( "\n" ); document.write( "The equation when two points are given \r
\n" ); document.write( "\n" ); document.write( "\"%28y-y1%29%2F%28y1-y2%29+=+%28x-x1%29%2F%28x1-x2%29\"\r
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\n" ); document.write( "\n" ); document.write( "where (x1,y1) (x2,y2) are the two points \r
\n" ); document.write( "\n" ); document.write( "\"%28y-2%29%2F%282-%28-2%29%29+=+%28x-1%29%2F%281-%28-1%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28y-2%29%2F4+=+%28x-1%29%2F2\"\r
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\n" ); document.write( "\n" ); document.write( "y-2=2(x-1)\r
\n" ); document.write( "\n" ); document.write( "y-2=2x-2\r
\n" ); document.write( "\n" ); document.write( "y-2x=0\r
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