Other ways to differentiate
Concept 13 of 17 in Continuity and Differentiability
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A ball thrown from the ground is at x=4tx = 4tx=4t, y=10t−5t2y = 10t - 5t^2y=10t−5t2 metres after ttt seconds. At the start, xxx grows at 444 m/s and yyy at 101010 m/s. What is the slope of its path at the start?
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