f(x) = x4 − 2x3 + x + 1, [−1, 3]

Question

Find the absolute extrema of the function on the given interval. (Round your answers to three decimal places. If an answer does not exist, enter DNE.)

minima (x,y)= ? (smaller x-value)

(x,y)= ? (larger x-value)

maximum (x,y) = ?

Answer 1

Deteremine f'(x). Set equal to 0.

Roots shall be at maximums or minimums.