document.write( "Question 535018: find the equation of the line going through (-1,5), and (3,7), and graph the line. \n" ); document.write( "
Algebra.Com's Answer #351734 by mananth(16946)\"\" \"About 
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x1 y1 x2 y2
\n" ); document.write( "-1 5 3 7
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\n" ); document.write( "slope m = (y2-y1)/(x2-x1)
\n" ); document.write( "( 7 - 5 )/( 3 -1 )
\n" ); document.write( "( 2 / 4 )
\n" ); document.write( "m= 1/ 2
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\n" ); document.write( "Plug value of the slope and point ( -1 , 5 ) in
\n" ); document.write( "Y = m x + b
\n" ); document.write( "5.00 = - 1/2 + b
\n" ); document.write( "b= 5 - 1/2
\n" ); document.write( "b= 9/ 2
\n" ); document.write( "So the equation will be
\n" ); document.write( "Y = 1/2 x + 9/2\r
\n" ); document.write( "\n" ); document.write( "y= 0.5 x + 4.5
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\n" ); document.write( "Plot the points
\n" ); document.write( "x 0 2 3
\n" ); document.write( "y= 4.5 5.5 6
\n" ); document.write( "(x,y) (0,4.5 ),(2,5.5),(3,6 ) \r
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\n" ); document.write( "m.ananth@hotmail.ca
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