Question: A model rocket is launched from an elevated pad. Its flight path through the air is modelled by h = -5t2 - 10t + 40,

A model rocket is launched from an elevated pad.

Its flight path through the air is modelled by h = -5t2 - 10t + 40, for h the height of the rocket in metres and t the time in seconds.

a) When does the rocket land? (Hint: Looking for factored form).

b) How high was the rocket when it was launched?

c) What is the maximum height of the rocket

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