Answer:
f(x) = x3 - 3x + 1
f'(x) = 3x2 - 3 = 3(x2 - 1) = 3(x+1)(x-1)
Find the critical numbers: set f'(x) = 0
3(x+1)(x-1) = 0 x = 1, -1
Check the sign of f'(x) on either side of each critical number. If f'(x) is positive on an interval, then f is increasing on the interval. If f'(x) is negative on an interval, then f is decreasing on the interval.
+ l - l + sign f'(x)
-------------------------------------
-1 1
f is increasing on (-∞, -1) υ (1, ∞)
f is decreasing on (-1, 1)
Well what you do is look at her answer then read part one and then explain your answer and do the following ........:)
It is TRUE that for every line segment there exactly one midpoint. The midpoint is the point that divides the segment into two equal parts. The coordinates of the midpoint of the segment are the average of the abscissa and ordinates.
<span>14 more than one-twelfth of some number, w:
14 + </span>
× w = 14 +