anonymous
  • anonymous
Given f(x)=x^3-4x^2-2. State the intervals on which f is increasing and on which f is decreasing.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
amistre64
  • amistre64
derive and set to 0
amistre64
  • amistre64
\[f' = 3x^2 -8x =0\] \[x(3x-8)=0\] \(x=0,8/3 \) right?
amistre64
  • amistre64
then maybe this; but we gotta check to make sure that x=0 aint an inflectionin disguise <.........0...........8/3...........> - + + - - + ------------------------ + - +

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
Wait, where are you getting the equation from?
amistre64
  • amistre64
its called a derivative; the first derivative tells you how the function is moving.... its slope at any given point
amistre64
  • amistre64
when the derivative =0 that means we are bending back on itself and changing direction ..usually. but, an inflection in a graph can also show a 0 in the 1st derivative
amistre64
  • amistre64
but; 6x-8 aint =0 at x=0 so its a bender
amistre64
  • amistre64
i gues the long way would be to factor the equation if we can
amistre64
  • amistre64
i just assumed by the nature of the question that it was a derivative type question lol
amistre64
  • amistre64
http://www.wolframalpha.com/input/?i=x^3-4x^2-2 might help you see whats happenin with it
anonymous
  • anonymous
I'm not up to calc yet :/ sorry...
anonymous
  • anonymous
Helppppp....

Looking for something else?

Not the answer you are looking for? Search for more explanations.