document.write( "Question 1063623: Given A(-1,4) and B(3,-2). A find the midpoint of AB.
\n" ); document.write( "B)Find the equation to the line through A and B. In slope intercept form.
\n" ); document.write( "C)General form with integer coefficients
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Algebra.Com's Answer #678751 by sky1983(10)\"\" \"About 
You can put this solution on YOUR website!
the midpoint is the average of the two points
\n" ); document.write( "x = (-1+3)/2 = 2/2 = 1
\n" ); document.write( "y = [4+(-2)]/2 = 2/2 = 1
\n" ); document.write( "the midpoint is at (1,1)\r
\n" ); document.write( "\n" ); document.write( "to find the equation in slope intercept form, find first the slope
\n" ); document.write( "m = [4-(-2)]/[-1-3] = 6/-4 = -3/2
\n" ); document.write( "from y = mx + b, solve for b using any of the given points, in here i will use point A(-1,4)
\n" ); document.write( "4 =(-3/2)(-1) + b
\n" ); document.write( "4 = 3/2 + b
\n" ); document.write( "b=5/2
\n" ); document.write( "so our equation is,
\n" ); document.write( "y = (-3/2)x + 5/2\r
\n" ); document.write( "\n" ); document.write( "The \"General Form\" of the equation of a straight line is:
\n" ); document.write( "Ax + By + C = 0
\n" ); document.write( "y = (-3/2)x + 5/2
\n" ); document.write( "y + (3/2)x - 5/2 = 0
\n" ); document.write( "rearrange
\n" ); document.write( "(3/2)x + y - 5/2 = 0\r
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\n" ); document.write( "\n" ); document.write( "cheers mate!
\n" ); document.write( "sky1983
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