document.write( "Question 722122: 1.Write the equation of the line that passes through (2, 2) and (6, 3) in standard form.
\n" ); document.write( "2.Write the equation of the line that passes through (2, 4) and (1, -3) in slope-intercept form.
\n" ); document.write( "3. \n" ); document.write( "
Algebra.Com's Answer #442653 by Alan3354(69443)\"\" \"About 
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1.Write the equation of the line that passes through (2,2) and (6,3) in standard form.
\n" ); document.write( "Use determinants:
\n" ); document.write( "|x y 1|
\n" ); document.write( "|2 2 1| = 0
\n" ); document.write( "|6 3 1|
\n" ); document.write( "--------
\n" ); document.write( "x*(2-3) - y*(2-6) + 1*(6-12) = 0
\n" ); document.write( "-x + 4y - 6 = 0
\n" ); document.write( "x - 4y = -6
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\n" ); document.write( "2.Write the equation of the line that passes through (2,4) and (1,-3) in slope-intercept form.
\n" ); document.write( "Find the slope, m = diffy/diffx
\n" ); document.write( "m = -7/-1 = 7
\n" ); document.write( "---
\n" ); document.write( "Use y= mx + b and either point to find b, the y-intercept
\n" ); document.write( "4 = 7*2 + b
\n" ); document.write( "b = -10
\n" ); document.write( "-----
\n" ); document.write( "y = 7x - 10
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\n" ); document.write( "PS Don't put a space after the comma in the points. \n" ); document.write( "
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