(E)(A)
(B)
(C)
(D)
(E)(A)
(B)
(C)
(D)
(E)(A)
(B)
(C)
(D)
(E)(A)
(B)
(C)For which curve shown in question 16 is f ′′ positive but f ′ negative?In Questions 18–21, the position of a particle moving along a horizontal line is
given by s = t 3 − 6t 2 + 12 t − 8.
The object is moving to the right for
t < 2
all t except t = 2
1 < t < 3
t < 1 or t > 3
t > 2
The minimum value of the speed is
0
1
2
3
8
The acceleration is positive
when t > 2
for all t, t ≠ 2
when t < 2
for 1 < t < 3
for 1 < t < 2
The speed of the particle is decreasing for
t < 2
t < 3
all t