document.write( "Question 77038: Find an equation of a line passing through the points (3,3) and (-1,8) \n" ); document.write( "
Algebra.Com's Answer #55212 by checkley75(3666) ![]() You can put this solution on YOUR website! FIRST WE FIND THE SLOPE (Y2-Y1)/(X2-X1) \n" ); document.write( "(8-3)/(-1-3)=5/-4=-5/4 \n" ); document.write( "NOW WE SUBSTITUTE ONE SET OF (X,Y) VALUES & SOLVE FOR THE Y INTERCEPT(b) \n" ); document.write( "3=-5/4*3+b \n" ); document.write( "3=-15/4+b \n" ); document.write( "b=3+15/4 \n" ); document.write( "b=(12+15)/4 \n" ); document.write( "b=27/4 \n" ); document.write( "THUS THE EQUATION IS \n" ); document.write( "Y=-5/4X+27/4 \n" ); document.write( " |