Determine the absolute extrema of each function on the given interval. Illustrate your results by

sketching the graph of each function.

a) f(x)���� = ��x^2 − 4x� + 3 , 0 ≤ x� ≤ 3
b) ����f(x) = ��(x − 1)^2�� , 0 ≤ x� ≤ 2

1 answer

you don't need calculus for this. It can just confirm your answers. these are just ordinary parabolas. Find the vertex, and check the values at the ends of the intervals.