Can someone please help with the below question?

Calculus
Tutor: None Selected Time limit: 1 Day

  1. For the function f(x)=x^2-4x:

a.Determine the average rate of change from x=1 to x=4

 

      b. Determine the instantaneous rate of change at x=1.

 

 

Jul 19th, 2015

Thank you for the opportunity to help you with your question!

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Average rate of change from x=1 to x=4



To find the instantaneous rate of change differentiate f(x) w.r.t. x


Now substitute x = 1



ANSWER:

Average rate of change = 1

Instantaneous rate of change = -2

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Please let me know if you need any clarification. I'm always happy to answer your questions.
Jul 19th, 2015

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