Mathematics, 19.10.2020 07:01 Tokkey12
A model rocket is launched from the roof of a building. Its flight path is modeled
by h = -5t^2 +30t +10 where h is the height of the rocket above the ground in
metres and r is the time after the launch in seconds.
What is the rocket's maximum height?
Answers: 2
with 
and 
with 
. Therefore, 
. Because the coefficient of the 
term is negative, we know the parabola points down, and the maximum height is the vertex. The x coordinate of the vertex of a parabola can be found with the equation 
, or 
. Plugging in 
into the equation gives us 
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A model rocket is launched from the roof of a building. Its flight path is modeled
by h = -5t^2 +30...
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