document.write( "Question 1432: find the vertex of the parabola: y=4x^2-8x+5 \n" ); document.write( "
Algebra.Com's Answer #451 by khwang(438)![]() ![]() ![]() You can put this solution on YOUR website! Make the complete square \n" ); document.write( " y=4x^2-8x+5 = 4(x^2 -2x +1) -4 + 5 \n" ); document.write( " = 4(x-1)^2 + 1 \n" ); document.write( " OR y - 1 = 4(x-1)^2\r \n" ); document.write( "\n" ); document.write( " Hence, the vertex of this parabola is (1,2) & cancave upward. \n" ); document.write( " \n" ); document.write( " |