document.write( "Question 754117: Write the equation of a line passing through the points (3,-2) and (-4,-1)
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Algebra.Com's Answer #458784 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Write the equation of a line passing through the points (3,-2) and (-4,-1) \n" ); document.write( "*** \n" ); document.write( "Standard form of equation for a straight line: y=mx+b, m=slope, b=y-intercept \n" ); document.write( "slope=∆y/∆x=(-1-(-2))/(-4-3)=1/-7=-1/7 \n" ); document.write( "equation: y=-x/7+b \n" ); document.write( "solving for b using coordinates of one of given points (3,-2) \n" ); document.write( "-2=-3/7+b \n" ); document.write( "b=-2+3/7=-11/7 \n" ); document.write( "Equation of given line: y=-x/7-11/7 \n" ); document.write( " |