document.write( "Question 31107: Please help me to find the equation of the line through the points:
\n" ); document.write( "(4,1) and (6,-3). Thank you so very much! \n" ); document.write( "

Algebra.Com's Answer #17810 by Cintchr(481) $\"\"$ $\"About$

You can put this solution on YOUR website!
First find the slope
\n" ); document.write( " $\"+%28y2-y1%29%2F%28x2-x1%29+\"$
\n" ); document.write( " $\"+%281--3%29%2F%284-6%29+\"$
\n" ); document.write( " $\"+4%2F-2+\"$
\n" ); document.write( " $\"+-2%2F1+\"$ plug this and one of the points into y=mx+b and solve for the y-intercept or b
\n" ); document.write( " $\"+y=mx%2Bb+\"$
\n" ); document.write( " $\"+1=%28-2%29%284%29+%2B+b+\"$
\n" ); document.write( " $\"+1=-8+%2B+b+\"$
\n" ); document.write( " $\"+9+=+b+\"$ plug b and the slope back into y=mx+b
\n" ); document.write( " $\"+y=-2x%2B9+\"$ if you want it in Ax+By=C ... then continue on
\n" ); document.write( " $\"+2x%2B1y=9+\"$ \n" ); document.write( "

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