Recent content by Julie H

  1. J

    Maximum/Minimum values of a graph on a restricted interval

    Homework Statement f(x) = x^3 + 12x^2 - 27x + 11 Absolute Maximum Absolute Minimum on the interval [-10,0] (there are 3 different interval sets, but if I can do this one, I think I can figure out the rest.) Homework Equations Derivative, set equal to 0, then solve for the problem, but...
  2. J

    Finding Absolute Extrema: Solving for Critical Points in Rational Functions

    I see now! I really need to get more comfortable with the quotient rule. I think I end up running myself in circles too often because I try to use the product rule, and then can't alter the problem to look like it would, if I had used the quotient rule. Thank you very much!
  3. J

    Finding Absolute Extrema: Solving for Critical Points in Rational Functions

    Homework Statement (16x)/(x^2+4) for -5 (less than OR equal to) x (less than OR equal to) 5 Homework Equations Set the derivative of the equation equal to 0, solve for x to find the critical points, then plug and check for validity. The Attempt at a Solution I used product rule for...
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