document.write( "Question 271091: I need help with this problem.
\n" );
document.write( "A ball is thrown from the top of a roof 320 feet above the ground. The formula h=-16t^2 + 32t + 320 describes the height of the ball above the ground, h, in feet, t seconds after the fall begins. I need to find the maximum height of the ball, as measured from the ground. The path of the ball is a parabola and I need to consider the vertex. \n" );
document.write( "
Algebra.Com's Answer #198506 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! vertex is on axis of symmetry ___ t = -32 / (2 (-16)) ___ t = 1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "h = -16 + 32 + 320 = 336 \n" ); document.write( " |