shown above?
(A) y = x^3
(B)
(C)
(D) y = sin x
(E) y = e −x^2- Which of the following functions could have the graph sketched below?
(A) f (x) = xex
(B) f (x) = xe −x
(C)
(D)
(E)Questions 20–22. Use the graph below, consisting of two line segments and a quarter-circle. The
graph shows the velocity of an object during a 6-second interval.
- For how many values of t in the interval 0 < t < 6 is the acceleration undefined?
(A) none
(B) one
(C) two
(D) three