document.write( "Question 484794: If f(x)=-3x+2,what are the values of m and b so that f(mx+b)=2x-3? \n" ); document.write( "
Algebra.Com's Answer #331643 by Edwin McCravy(20056)![]() ![]() You can put this solution on YOUR website! If f(x)=-3x+2,what are the values of m and b so that f(mx+b)=2x-3? \n" ); document.write( " \r\n" ); document.write( " \r\n" ); document.write( "f(x) = -3x + 2\r\n" ); document.write( "\r\n" ); document.write( "Repace x by mx+b\r\n" ); document.write( "\r\n" ); document.write( "f(mx+b) = -3(mx+b) + 2\r\n" ); document.write( "\r\n" ); document.write( "f(mx+b) = -3mx - 3b + 2\r\n" ); document.write( "\r\n" ); document.write( "We are told that\r\n" ); document.write( "\r\n" ); document.write( "f(mx+b) = 2x - 3\r\n" ); document.write( "\r\n" ); document.write( "So\r\n" ); document.write( "\r\n" ); document.write( "-3mx - 3b + 2 = 2x - 3 for all values of x\r\n" ); document.write( "\r\n" ); document.write( "Therefore we set the coefficients of x equal:\r\n" ); document.write( "\r\n" ); document.write( " -3m = 2\r\n" ); document.write( " m =\n" ); document.write( " |