You can
put this solution on YOUR website!According to Physics, the height as a function of time in seconds should be
After 3 seconds, the object's height is
The quadratic function
has a maximum and its graph (h versus t) is a parabola.
To figure out when it reaches its highest altitude, find the axis of symmetry of the parabola:
-->
So the object reaches its maximum height at 9 seconds.
That height is
To find out when it hits the ground (
), you solve the quadratic equation
or the equivalent
