What does this mean f '(2)

Main Question or Discussion Point

is it the same as f(2)
 

Answers and Replies

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No. It usually means the derivative of f evaluated at 2.
 
Gib Z
Homework Helper
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[tex]f'(2) = \lim_{h \rightarrow 0} \frac{f(2+h) - f(2)}{h}[/tex]
 
thanks man
 
mathwonk
Science Advisor
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one is height of graph at x=2, one is slope of graph at x=2.
 
Hurkyl
Staff Emeritus
Science Advisor
Gold Member
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f is a function.

f' is a function: it's the derivative of f.

f'(2) is the result of plugging 2 into the function f'
 

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