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  1. #1
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    rocket in my pocket

    How would you go about solving this?

    A rocket is fired into the air and it's height in metres at any given time t seconds can be calculated by h(t)=225+ 49t-0.98t(squared). Find the maximum height of the rocket and the time at which it occurs.
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  2. #2
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    Quote Originally Posted by math619 View Post
    How would you go about solving this?

    A rocket is fired into the air and it's height in metres at any given time t seconds can be calculated by h(t)=225+ 49t-0.98t(squared). Find the maximum height of the rocket and the time at which it occurs.
    The squared coefficient is a=-.98
    The linear coefficient is b=49.

    We have a turning point at,
    x=\frac{-b}{2a}=\frac{-49}{2(-.98)}
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