on which interval the function is increasing (derivative is positive) *
2 points
2
-2 -1
1 2 3
(0,0)
Cusp
Loc min
(-1, 1)
(0, infinity)
(-?, 1)
(-?, 0) and (1, ?)
Use the chart below *
+++0----0+++0----
f':
-1
2
4
x
1 point
There is a local maximum at x = 2. There are local minima at x =-1 and x = 4
There is a local maximum at x = 2. There is local minima at x =-1 only
There are local maxima at x = -1 and x = 4
There are local minima at x =-1 and x = 4
