Find the absolute maximum of LaTeX:  \displaystyle f(x) = \frac{11 x^{3}}{32} - \frac{33 x^{2}}{32} - \frac{99 x}{32} + \frac{265}{32} on LaTeX:  \displaystyle [-4,10]

Taking the derivative gives LaTeX:  \displaystyle f'(x) = \frac{33 x^{2}}{32} - \frac{33 x}{16} - \frac{99}{32} . Setting it equal to zero and solving gives the critical numbers. LaTeX:  \displaystyle \frac{33 x^{2}}{32} - \frac{33 x}{16} - \frac{99}{32} = 0 . The critical numbers are LaTeX:  \displaystyle x = -1 and LaTeX:  \displaystyle x = 3 . The absolute maximum is either at a critical number or at the end point of the interval. The inputs to be checked are LaTeX:  \displaystyle {10, 3, -4, -1} and evaluating gives LaTeX:  \displaystyle \left( 10, \  \frac{6975}{32}\right), \left( 3, \  -1\right), \left( -4, \  - \frac{571}{32}\right), \left( -1, \  10\right) . The max is LaTeX:  \displaystyle \left( 10, \  \frac{6975}{32}\right) and the min is LaTeX:  \displaystyle \left( -4, \  - \frac{571}{32}\right) .