document.write( "Question 891434: write the equation using ax+by=c. the line passes throughthe points (3,5) and (-6,-7) \n" ); document.write( "
Algebra.Com's Answer #539752 by lwsshak3(11628)\"\" \"About 
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write the equation using ax+by=c. the line passes through the points (3,5) and (-6,-7)
\n" ); document.write( "Start with form for equation of a line: y=mx+b, m=slope, b=y-intercept
\n" ); document.write( "slope, m=∆y/∆x=(5-(-7))/(3-(-6)=(5+7)/(3+6)=12/9=4/3
\n" ); document.write( "equation:
\n" ); document.write( "y=4x/3+b
\n" ); document.write( "solve for b using coordinates of one of the given points (3,5)
\n" ); document.write( "5=4*3/3+b
\n" ); document.write( "b=1
\n" ); document.write( "y=4x/3+1
\n" ); document.write( "3y=4x+3
\n" ); document.write( "4x-3y=-3
\n" ); document.write( "
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