Using the definition of derivative, prove that the derivative of a constant is 0.

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter3: Functions
Section3.3: Rates Of Change And Behavior Of Graphs
Problem 1SE: Can the average rate of change of a function be constant?
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Using the definition of derivative, prove that the derivative of a constant is 0.

Expert Solution
Step 1

Let the constant function be

f(x)=k

By definition of derivative

f'(x)=limh0f(x+h)-f(x)h

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