Answer
See below
Work Step by Step
a)Absolute maximum: The absolute maximum can be found by selecting the largest value of f from the following list:
The values of f at any local maxima of f in [a,b].
The value of f at each endpoint of [a,b]-that is, f(a) and f(b).
As the curve is disconnected, there is no absolute maximum.
Absolute minimum: The absolute minimum can be found by selecting the smallest value of f from the following list:
3. The values of f at any local minima of f in [a,b].
4. The value of f at each endpoint of [a,b]-that is, f(a) and f(b).
As the curve is disconnected, there is no absolute minimum.