Differentiation question

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• Nov 17th 2012, 01:48 AM
siang116
Differentiation question
Hi folks, I need help to solve this question in my study paper. Hope to hear from you all soon! :)

A company’s output rate Q at time t is given by a function which changes at t= 10 as follows:

Attachment 25756

Find the rate of change of output rate Q with respect to t when (i) t = 5, and (ii) t = 15.
• Nov 17th 2012, 07:41 AM
skeeter
Re: Differentiation question
$y = A(1 - e^{kt})$

$\frac{dy}{dt} = A(-ke^{kt})$