document.write( "Question 916405: Write an equation of the line through each pair of points in slope-intercept form.
\n" ); document.write( "(2, 4) and (-4, -11) \n" ); document.write( "
Algebra.Com's Answer #556067 by mananth(16946)\"\" \"About 
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x1 y1 x2 y2
\n" ); document.write( "2 4 -4 -11
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\n" ); document.write( "slope m = (y2-y1)/(x2-x1)
\n" ); document.write( "( -11 - 4 )/( -4 - 2 )
\n" ); document.write( "( -15 / -6 )
\n" ); document.write( "m= 2 1/ 2
\n" ); document.write( "The required line passes through both the points. So we select one point and plug it with the slope
\n" ); document.write( "Plug value of the slope and point ( 2 , 4 ) in
\n" ); document.write( "Y = m x + b
\n" ); document.write( "4.00 = 2 1/2 * 2 + b
\n" ); document.write( "4.00 = 5 + b
\n" ); document.write( "b= 4 + -5
\n" ); document.write( "b= -1
\n" ); document.write( "So the equation will be
\n" ); document.write( "Y = 5/2 x -1
\n" ); document.write( "m.ananth@hotmail.ca
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