document.write( "Question 436742: what are the coordinates of the point where the line containing K(-3,5) and L(5,4) crosses the y axis? \n" ); document.write( "
Algebra.Com's Answer #302200 by robertb(5830)![]() ![]() You can put this solution on YOUR website! y = mx + b ==> 5 = -3m + b, and \r \n" ); document.write( "\n" ); document.write( "4 = 5m + b\r \n" ); document.write( "\n" ); document.write( "Multiply 5 = -3m + b by 5, to get 25 = -15m + 5b \n" ); document.write( "Multiply 4 = 5m + b by 3 to get 12 = 15m + 3b \n" ); document.write( "Add:\r \n" ); document.write( "\n" ); document.write( "37 = 8b ==> b = 37/8, the y-intercept. \n" ); document.write( " |