Lowest points those have bumps on them (0.6,-8) and (3.4,-8)
And highest point that has bump on it is (2,0)
Therefore,
Local minimum at x=0.6 is -8 and at x=3.4 is -8.
And local maxima is at x=2 is 0.
Therefore, following statements are applicable:
Over the interval [–1, 1,] the local minimum is –8.
Over the interval [2, 4], the local minimum is –8.
Over the interval [3, 5], the local minimum is –8.
Over the interval [1, 4], the local maximum is 0.