Step 4: Identify the maximum and minimum values of  f  out of the values calculated in
Step 3 This maximum value will be the absolute maximum (greatest) value of
f  and the minimum value will be the absolute minimum (least) value of  f Fig 6 19
Rationalised 2023-24
APPLICATION OF DERIVATIVES
173
Example 27 Find the absolute maximum and minimum values of a function f given by
f (x) = 2x3 – 15x2 + 36x +1 on the interval [1, 5]