Rate of Change of Medicine Amount in Blood after Injection | M(t) = -1/3t^2 + t

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Homework Help Overview

The problem involves determining the rate of change of the amount of medicine in a patient's blood after an injection, represented by the function M(t) = -1/3t^2 + t, within the interval 0 <= t <= 3 hours.

Discussion Character

  • Exploratory, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the need to differentiate the function M(t) to find M'(t) and evaluate it at t = 2. Some express uncertainty about the differentiation process and seek further elaboration.

Discussion Status

The discussion is ongoing, with participants attempting to clarify the differentiation step and its application to find the rate of change at a specific time. There is no explicit consensus yet, but guidance on evaluating the derivative has been suggested.

Contextual Notes

Participants are working within the constraints of the problem statement, focusing on the specific time frame of 2 hours after the injection.

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Homework Statement


A medicine is administered to a patient. The amount, M, of the medicine in milligrams, in 1 mL of the patient's blood t hours after the injection is given by
M(t) = -1/3t^2 + t where 0<=t<=3

Find the rate of change of the amount, M, 2 hours after the injection.


Homework Equations





The Attempt at a Solution



No idea.
 
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Differentiate the equation and substitute t = 2 into M'(t).
 
snipez90 said:
Differentiate the equation and substitute t = 2 into M'(t).

Elaborate please.
 
TayTayDatDude said:
Elaborate please.

You have M(t), what does M'(t) = ? Now plug in t into M'(t) i.e. evaluate M'(2)
 

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