`f(x) = 1/(x+4), c=3` Use the alternative form of the derivative to find the derivative at x = c (if it exists).

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Chapter 2, Review - Problem 6 - Calculus of a Single Variable (10th Edition, Ron Larson).
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nees101 | Student, Graduate | (Level 2) Adjunct Educator

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Given the function `f(x)=1/(x+4)`

We have to use the alternative form of derivative to find the derivative at x=c.

Here given that c=3.

So by definition of alternative derivative we have,


`f'(3)=lim_(x->3)(f(x)-f(3))/(x-3)` ``







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