document.write( "Question 186591: please help me solve these problems thank you\r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "Find the vertex and intercepts of the parabola\r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "y=-3x2square+6x \n" );
document.write( "
Algebra.Com's Answer #139853 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! Standard vertex form: \n" ); document.write( "y= a(x-h)^2+k \n" ); document.write( "where \n" ); document.write( "(h,k) is the vertex \n" ); document.write( ". \n" ); document.write( "y=-3x^2+6x \n" ); document.write( "y=-3(x^2-2x) \n" ); document.write( "At this point, you \"complete the square\" \n" ); document.write( "y=-3(x^2-2x+1) + 3 \n" ); document.write( "y=-3(x^2-1)^2 + 3 \n" ); document.write( ". \n" ); document.write( "By inspection... \n" ); document.write( "Therefore, the vertex is at (1,3)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |