document.write( "Question 104194: what is the equation for the line that passes through the points (3,5)and(4,1)? \n" ); document.write( "
Algebra.Com's Answer #75798 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! FIRST WE FIND THE SLOPE \n" ); document.write( "SLOPE(m)=(Y2-Y1)/(X2-X1) \n" ); document.write( "m=(1-5)/(4-3) \n" ); document.write( "m=-4/1=-4 THIS IS THE SLOPE. \n" ); document.write( "NOW WE SUBSTITUTE ONE SET OF X,Y POINTS FOR THE X & Y IN THE LINE EQUATION [Y=mX+b] & SOLVE FOR THE Y INTERCEPT (b) \n" ); document.write( "5=3*-4+b \n" ); document.write( "5=-12+b \n" ); document.write( "b=5+12 \n" ); document.write( "b=17 ANSWER FOR THE Y INTERCEPT. \n" ); document.write( "Y=-4X+17 \n" ); document.write( " \n" ); document.write( " |