Answer:
<h2>After two seconds, the ball reached 9 units up.</h2>Step-by-step explanation:
The given function is
The given function models the path of the ball.
The maxium height the ball reached is given by the vertex of this function, which has coordinates , where
and
.
From the equation, we know that ,
and
. Replacing these values, we have
Where determines the height and
the time when the maximum height was reached by the ball.
The maximum height is 9 units.
Therefore, after two seconds, the ball reached 9 units up.