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The graph of the function has more than one turning point. Use the graphing calculator to find the coordinates of the turning point that lies in the given interval.
f(x)= 7x^3 9x^2 x+1, [1, 10] The coordinates of the turning point are
 one year ago
 one year ago
The graph of the function has more than one turning point. Use the graphing calculator to find the coordinates of the turning point that lies in the given interval. f(x)= 7x^3 9x^2 x+1, [1, 10] The coordinates of the turning point are
 one year ago
 one year ago

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TuringTestBest ResponseYou've already chosen the best response.0
The asker said algebra, so presumably that means no calculus allowed.
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
it would certainly be a much easier calculus problem not sure I know a method for this using only algebra, I'll have to think on it...
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
that's all I can think of too
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
find x=a such that f'(a)=0
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
...in the given interval
 one year ago

cinarBest ResponseYou've already chosen the best response.1
http://www.wolframalpha.com/input/?i=plot+y%3D7x^3+9x^2+x%2B1
 one year ago

jmallisBest ResponseYou've already chosen the best response.0
ok so what would the coordinates of the turning point?
 one year ago

cinarBest ResponseYou've already chosen the best response.1
It says "Use the graphing calculator to find the coordinates of the turning point that lies in the given interval"
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
wow I managed to not even read the post :P thanks cinar
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
the website wolfram alpha is a pretty good one http://www.wolframalpha.com/
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
that site serves as a graphing calculator
 one year ago

cinarBest ResponseYou've already chosen the best response.1
http://answers.yahoo.com/question/index?qid=20091030113220AAieoZy
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
that method again requires calculus your three options are to buy the graphing calculator, get wolfram working on your laptop, or learn calculus besides that I have no ideas
 one year ago

cinarBest ResponseYou've already chosen the best response.1
I guess you have to use derivative
 one year ago

cinarBest ResponseYou've already chosen the best response.1
they are roughly (0.9,2) (0.1,1) but exactly
 one year ago

cinarBest ResponseYou've already chosen the best response.1
http://www.wolframalpha.com/input/?i=max+y%3D7x^3+9x^2+x%2B1
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
wolfram disagrees o_O
 one year ago

cinarBest ResponseYou've already chosen the best response.1
http://www.wolframalpha.com/input/?i=min+y%3D7x^3+9x^2+x%2B1
 one year ago

cinarBest ResponseYou've already chosen the best response.1
that's right, I just used my eyes (:
 one year ago

cinarBest ResponseYou've already chosen the best response.1
(0.05,1.03) and (0.91,2.09) these are your answer..
 one year ago

cinarBest ResponseYou've already chosen the best response.1
I made typo for this they are roughly (0.9,2) (0.1,1) but exactly
 one year ago
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