anonymous
  • anonymous
Find all critical numbers by hand. If available, use graphing technology to determine whether the critical number represents a local maximum, local minimum, or neither. f(x) = x^4 - 3x^3 + 2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
@rajathsbhat can u help?
anonymous
  • anonymous
not too sure about this :\
anonymous
  • anonymous
ok

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anonymous
  • anonymous
@electrokid can u help?
anonymous
  • anonymous
are you allowed to use calculus for this? or algebra 2?
anonymous
  • anonymous
take derivative
anonymous
  • anonymous
okay the derivative is x^2(4x - 9)
anonymous
  • anonymous
or 4x^3 - 9x^2
anonymous
  • anonymous
set that equal to 0 and solve for x
anonymous
  • anonymous
okay
anonymous
  • anonymous
i get 0 and 9/4
anonymous
  • anonymous
that's your criticle number
anonymous
  • anonymous
okay so thats it?
anonymous
  • anonymous
how do i determine whether it is local maximum, minimum or either
anonymous
  • anonymous
neither*
anonymous
  • anonymous
1)Plug in Crit point into F''(t); positive number mean min, negative number mean max
anonymous
  • anonymous
okay thanks

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