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iplayffxiv
Group Title
a
Suppose that f has a positive derivative for all values of x and that f(2) = 0. Which of the following statements must be true of the function
 one year ago
 one year ago
iplayffxiv Group Title
a Suppose that f has a positive derivative for all values of x and that f(2) = 0. Which of the following statements must be true of the function
 one year ago
 one year ago

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iplayffxiv Group TitleBest ResponseYou've already chosen the best response.0
\[g(x)= \int\limits_{0}^{x}f(t) dt\]
 one year ago

iplayffxiv Group TitleBest ResponseYou've already chosen the best response.0
A) The function g has a local maximum at x = 2. B) The function g has a local minimum at x = 2. C) The graph of g has an inflection point at x = 2. D) The graph of g crosses the xaxis at x = 2.
 one year ago

iplayffxiv Group TitleBest ResponseYou've already chosen the best response.0
but what if it isn't because the question says "of the function"
 one year ago

iplayffxiv Group TitleBest ResponseYou've already chosen the best response.0
if there is a positive for all x doesnt that mean it never crosses x axis?
 one year ago

fatima1 Group TitleBest ResponseYou've already chosen the best response.0
positive derivative means that the curve is proceeding in downward direction
 one year ago

iplayffxiv Group TitleBest ResponseYou've already chosen the best response.0
still think its d?
 one year ago

t_soulb Group TitleBest ResponseYou've already chosen the best response.2
no no wait ..
 one year ago

t_soulb Group TitleBest ResponseYou've already chosen the best response.2
i think its b,c,d .. comments please :)
 one year ago

iplayffxiv Group TitleBest ResponseYou've already chosen the best response.0
now im more confused
 one year ago

sama491 Group TitleBest ResponseYou've already chosen the best response.0
f(2)=0 implies that for f at x=2, y=0 thus option D is right.
 one year ago

iplayffxiv Group TitleBest ResponseYou've already chosen the best response.0
you think its d sama?
 one year ago

sama491 Group TitleBest ResponseYou've already chosen the best response.0
Nothing can be said about the other options as there is no mention of the nature of the derivative of f except that it is +ve which implies f is always increasing in the domain. So yes it is D :)
 one year ago

iplayffxiv Group TitleBest ResponseYou've already chosen the best response.0
ok thanks sama and soul
 one year ago

iplayffxiv Group TitleBest ResponseYou've already chosen the best response.0
hope its correct
 one year ago

sama491 Group TitleBest ResponseYou've already chosen the best response.0
Will be right ;) And you're welcome!
 one year ago

t_soulb Group TitleBest ResponseYou've already chosen the best response.2
b..is correct sorry .. see as
 one year ago

sama491 Group TitleBest ResponseYou've already chosen the best response.0
Dude I'm so sorry! I read g as f :P B is right!
 one year ago
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