**Problem : **
Find the derivative of the function
*f* (*x*) = 5*x* + 2000
.

**Problem : **
Find all functions
*f*
such that
*f'*(*x*) = 0
.

**Problem : **
Sketch the graph of the derivative of the function
*f* (*x*)
with the following graph:

Figure %: Plot of
*f* (*x*)

Figure %: Derivative of
*f* (*x*)
,
*f'*(*x*)

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