document.write( "Question 1202252: If y varies directly as x and y=12 when x=-3, find y when x=7 \n" ); document.write( "
Algebra.Com's Answer #836942 by mananth(16946)![]() ![]() You can put this solution on YOUR website! If y varies directly as x and y=12 when x=-3, find y when x=7\r \n" ); document.write( "\n" ); document.write( "y varies as x \n" ); document.write( "y=kx\r \n" ); document.write( "\n" ); document.write( " y=12 when x=-3\r \n" ); document.write( "\n" ); document.write( "12=k*-3 \n" ); document.write( "k=12/-3 =-4\r \n" ); document.write( "\n" ); document.write( "you know k=-4 and x=7\r \n" ); document.write( "\n" ); document.write( "plug in equation to get y\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |