document.write( "Question 1186109: Find the equation of a line which passes through (6, 3) and (-3, -5). \n" ); document.write( "

Algebra.Com's Answer #816991 by Alan3354(69443) $\"\"$ $\"About$

You can put this solution on YOUR website!
Find the equation of a line which passes through (6, 3) and (-3, -5).
\n" ); document.write( "--------
\n" ); document.write( "Step 1, find the slope, m.
\n" ); document.write( "m = diffy/diffx = (-5-3)/(-3-6) = 8/9
\n" ); document.write( "----
\n" ); document.write( "Use y-y1 = m*(x-x1) where (x1,y1) is either point.
\n" ); document.write( "=============================
\n" ); document.write( "Or,
\n" ); document.write( "

\r\n" );
document.write( "| x   y   1|\r\n" );
document.write( "| 6   3   1| = 0\r\n" );
document.write( "|-3  -5   1|\r\n" );
document.write( "

\n" ); document.write( "---
\n" ); document.write( "x*(3*1 - -5*1) - y*(6*1 - (-3)*1) + 1*(6*(-5) - (-3)*3) = 0
\n" ); document.write( "8x -9y -21 = 0
\n" ); document.write( " \n" ); document.write( "

\n" );