The function also has a local maxima at x = c and local maximum
value is f (c) Also from the graph, it is evident that f has  absolute maximum value f (a) and
absolute minimum value f (d) Further note that the absolute maximum (minimum)
value of f is different from local maximum (minimum) value of f We will now state two results (without proof) regarding absolute maximum and
absolute minimum values of a function on a closed interval I