document.write( "Question 323659: What is the equation of the line that passes through (3, -8) and (-6,4) ? \n" ); document.write( "

Algebra.Com's Answer #231602 by JBarnum(2146) $\"\"$ $\"About$

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find m first
\n" ); document.write( " $\"m=y-y%2Fx-x\"$
\n" ); document.write( " $\"%284%2B8%29%2F%28-6-3%29\"$
\n" ); document.write( " $\"12%2F-9\"$
\n" ); document.write( " $\"m=-4%2F3\"$
\n" ); document.write( "

\n" ); document.write( "put into $\"y=mx%2Bb\"$
\n" ); document.write( "and find b
\n" ); document.write( " $\"-8=%28-4%2F3%293%2Bb\"$
\n" ); document.write( " $\"-8=-4%2Bb\"$
\n" ); document.write( " $\"-4=b\"$
\n" ); document.write( "

\n" ); document.write( "rewrite equation
\n" ); document.write( " $\"y=%28-4%2F3%29x-4\"$
\n" ); document.write( "get x and y on same side\r
\n" ); document.write( "\n" ); document.write( " $\"3y=%28-4%29x-12\"$
\n" ); document.write( " $\"4x%2B3y=-12\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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