document.write( "Question 446384: (3,8) and (9,12)
\n" ); document.write( "Determine in each case the gradient and equation of the line joining the two points.
\n" ); document.write( "Determine the co-ordinates for X intercept and y intercept for each of the lines
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Algebra.Com's Answer #307417 by mananth(16946)\"\" \"About 
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x1 y1 x2 y2
\n" ); document.write( "3 8 9 12
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\n" ); document.write( "slope m =(y2-y1)/(x2-x1)
\n" ); document.write( "(12-8)/(9-3)
\n" ); document.write( "(4/6)
\n" ); document.write( "m=0.67
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\n" ); document.write( "Plug value of the slope and point(3,8 ) in
\n" ); document.write( "Y = m x + b
\n" ); document.write( "8.00 = 2 + b
\n" ); document.write( "b= 8 - 2
\n" ); document.write( "b= 6
\n" ); document.write( "So the equation will be
\n" ); document.write( "Y =0.67 x+6
\n" ); document.write( "y intercept point (0,6)
\n" ); document.write( "x intercept point (8.95,0)
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