document.write( "Question 243077: Please help me solve the following problem.
\n" );
document.write( "At what point(s) do the graphs of y=2log(x) and y=log(2x) intersect? \n" );
document.write( "
Algebra.Com's Answer #178099 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! At what point(s) do the graphs of y=2log(x) and y=log(2x) intersect? \n" ); document.write( "---------------- \n" ); document.write( "Substitute to get: \n" ); document.write( "2log(x) = log(2x) \n" ); document.write( "--- \n" ); document.write( "log(x^2) = log 2x \n" ); document.write( "------------------------ \n" ); document.write( "x^2 = 2x \n" ); document.write( "x^2-2x = 0 \n" ); document.write( "x(x-2) = 0 \n" ); document.write( "x = 0 or x=2 \n" ); document.write( "----------------------- \n" ); document.write( "x cannot be zero because log(2*0) = log(0) does not exist. \n" ); document.write( "------------------- \n" ); document.write( "So, x = 2 \n" ); document.write( "--- \n" ); document.write( "Then y = log(2x) = log(4) = 0.6021 \n" ); document.write( "---- \n" ); document.write( "Point of intersection: (2,0.6021) \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |