anonymous
  • anonymous
f(x)=(x+2)^3-4. The point (-2, -4) is which of the following? A) An absolute maximum B) An absolute minimum C) A critical point but not an extremum D) Not a critical point E) None of these I think the answer is C, am I right?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Is this a calculs question or have you not learnt any calculus yet?
anonymous
  • anonymous
A Calculus question and I take this class right now.
anonymous
  • anonymous
You know to find a maximum or minimum you find the derivative right?

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anonymous
  • anonymous
Yes. But I wonder if C is the right answer. Do you must find the maximum and the minimum for this problem? If so, what to do after finding the derivatives?
anonymous
  • anonymous
Okay, after you find the derivative, you set it equal to zero and solve for x.
anonymous
  • anonymous
You substitute a number smaller than and a number bigger than x into the derivative.
anonymous
  • anonymous
If the derivative changes from a - to a + the function has a local min. If the derivative changes from + to - the function has a local max.
anonymous
  • anonymous
A critical number is where the value of x you find makes the derivative equal to 0 or makes it undefined.
anonymous
  • anonymous
Okay I just did all the work out. You are correct :P .
anonymous
  • anonymous
@Idealist

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