document.write( "Question 479498: What is the equation of a line that passes through (1, 8) and (2, -4)? \n" ); document.write( "
Algebra.Com's Answer #328522 by mananth(16946)\"\" \"About 
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x1 y1 x2 y2
\n" ); document.write( "1 8 2 -4
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\n" ); document.write( "slope m = (y2-y1)/(x2-x1)
\n" ); document.write( "( -4 - 8 )/( 2 - 1 )
\n" ); document.write( "( -12 / 1 )
\n" ); document.write( "m= -12.00 -12
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\n" ); document.write( "Plug value of the slope and point ( 1 , 8 ) in
\n" ); document.write( "Y = m x + b
\n" ); document.write( "8.00 = -12 + b
\n" ); document.write( "b= 8 -12
\n" ); document.write( "b= 20
\n" ); document.write( "So the equation will be
\n" ); document.write( "Y = -12 x + 20
\n" ); document.write( "m.ananth@hotmail.ca \r
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