document.write( "Question 199326: Write the equation of the line passing through the points (-7, 2) and (5, 8) in slope intercept form. Please show work. \r
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document.write( "I know it's using m=y^2-y^1/x^2-x^1 and then point slope y-y^1=m(x-x^1) -- but the fraction is throwing me off.\r
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document.write( "Please help.
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document.write( "Thank you. \n" );
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Algebra.Com's Answer #149775 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! (-7, 2) and (5, 8) \n" ); document.write( "Y=mX+b is the line equation where m=slope & b=the y intersection. \n" ); document.write( "slope=(y2-y1)/(x2-x1)=(8-2)/(5-[-7])=6/12=1/2 ans. \n" ); document.write( "Now replace the X & Y with one set of points & solve for b. \n" ); document.write( "2=1/2(-7)+b \n" ); document.write( "2=-7/2+b \n" ); document.write( "b=2+7/2 \n" ); document.write( "b=2+3.5 \n" ); document.write( "b=5.5 the y intercept. \n" ); document.write( "y=x/2+5.5 \n" ); document.write( " |