4 The height, x metres, of a diver above a swimming pool at time t seconds after he has bounced from the diving board can be modelled by the function x(t)= 3- 3t (3t^2/2)(adsbygoogle = window.adsbygoogle || []).push({});

a How long, in seconds, after he has bounced from the diving board does the diver

reach his maximum height?

b What is the maximum height reached by the diver, in metres?

c After exactly how many seconds does he hit the water?

d How deep is the diver half a second after he hits the water, assuming that the model

remains valid for this time?

Give your answer to the nearest centimetre.

i really need help with part d. i don't understand the question. could someone please help me?

thank you

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# Homework Help: Modelling with polynomials and rational functions

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