geometry

I am not a student, I am a parent trying to help my son. I understand why you do not want to solve the questions, but can you please help me set them up correctly so I can try?
h = -16t(exponent 2) + 60t where t is the time in seconds.
A) Factor the expression
B) What is the height of the rocket after 2 seconds?
C) What is the height of the rocket after 3.75 seconds? Explain the solution.

*any help would be greatly appreciated!

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  1. what do u me by exponent 2
    is it
    h=-16t²+60t?

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  2. h(t) = -16t^2 + 60t = 4t(-4t+15)

    h(2) = 4*2(-4*2+15) = 8(7) = 56

    now just plug in 3.75 for t.
    Or, note that

    h(t) = 0 when
    -4t+15=0
    t = 15/4 = 3.75

    so, what does that mean?

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