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Find the derivative at each critical point and determine the local extreme values.<br />

28) y = x2 25 - x<br />

Find the extreme values of the function and where they occur.<br />

29) y = x3 - 3x2 + 1<br />

1<br />

30) y =<br />

x2 - 1<br />

5x<br />

31) y =<br />

x2 + 1<br />

32) y = (x + 1)2/3<br />

33) y = x3 - 3x2 + 7x - 10<br />

Determine all critical points <strong>for</strong> the function.<br />

34) f(x) = x3 - 12x + 2<br />

35) f(x) = x3 - 3x2 + 8<br />

36) f(x) = 20x3 - 3x5<br />

37) f(x) =<br />

2x<br />

x + 8<br />

38) f(x) = (x - 4)3<br />

39) y = 2x2 - 64 x<br />

Find the absolute extreme values of the function on the interval.<br />

40) f(x) = 5x2/3, -27 ≤ x ≤ 8

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