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Proving with mean value theorem

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Suppose that g(a) = g'(a)=0 and |g''(x)| < M for all x in [a, a+h] (for some positive constant M). Show that |g(a+h)| < Mh^2.
(Hint: Let k be any number such that 0<= k <= h and apply Mean Value Theorem to g' on [a,a+k].)
 

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matt grime
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Well, what does the mean value theorem say, and what does it imply when you use it as hinted?
 
  • #3
I'd also keep in mind the definition of a derivative.

--J
 

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