document.write( "Question 388211: The variables x and y vary directly. Use
\n" );
document.write( " the given values to write an equation that relates x and y.
\n" );
document.write( " x = 12, y = 4 \n" );
document.write( "
Algebra.Com's Answer #274485 by tara0066(31)![]() ![]() You can put this solution on YOUR website! Direct variation equation is y=kx\r \n" ); document.write( "\n" ); document.write( "Your k is your variation or you could look at it as your slope. \r \n" ); document.write( "\n" ); document.write( "y=kx Plug in what you know \n" ); document.write( "4=k12 Divide both sides by 12 to cancel out your 12 that is being multiplied by k. \n" ); document.write( "4(/12)=k12(/12) Simplify \n" ); document.write( "1/3=k \n" ); document.write( "y=1/3x This is your direct variation equation. \n" ); document.write( " |