document.write( "Question 517625: Find an equation for the line through the point (−7,6) with x intercept 3. How do i do this problem? \n" ); document.write( "
Algebra.Com's Answer #344867 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Find an equation for the line through the point (−7,6) with x intercept 3. How do i do this problem? \n" ); document.write( "** \n" ); document.write( "Standard form for an equation of a straight line: y=mx+b, m=slope, b=y-intercept \n" ); document.write( "You have two points to work with: \n" ); document.write( "With x-intercept (3,0) \n" ); document.write( "Thru point (-7,6) \n" ); document.write( ".. \n" ); document.write( "m=∆y/∆x=(6-0)/(-7-3) \n" ); document.write( "m=-6/10=-3/5 \n" ); document.write( "equation: \n" ); document.write( "y=-3x/5+b \n" ); document.write( "solving for b using coordinates of given point (-7,6) \n" ); document.write( "6=(-3*-7)/5+b \n" ); document.write( "6=21/5+b \n" ); document.write( "30=21+5b \n" ); document.write( "5b=9 \n" ); document.write( "b=9/5 \n" ); document.write( "equation: \n" ); document.write( "y=-3x/5+9/5 \n" ); document.write( " |