document.write( "Question 709270: y=-3x^2-9x-12 need help finding the vertex and axis \n" ); document.write( "
Algebra.Com's Answer #436476 by josgarithmetic(39838) ![]() You can put this solution on YOUR website! EDIT: Fixed the sign mistake.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "First, factor. Then complete the square.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "The square to add and subtract is \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The value of \"h\" is \n" ); document.write( "The vertex is ( \n" ); document.write( " \n" ); document.write( " |