Texts: Let f be a continuous function that is defined everywhere. The derivative of f is:
f' = -2x + 6x - 1x - 8
Determine the intervals on which f is increasing and decreasing, and use the first derivative test to find its relative extrema.
Shot 17.07A
v1,8 vx = -6 vx = 1 vx = 8 -,-6 v]8+0 -6,1
a. relative maximum
b. decreasing
c. relative minimum
d. constant
e. none of these
f. increasing
Shot 7.48AM
gends