1 2 3 4 Rate of change
of f(x)
Positive and
increasing
Negative and
increasing
Positive and
decreasing
Negative and
decreasing
The table gives characteristics of the rates of change of the function f on different intervals. Which of the follow
s true about f on the interval 3 < x < 4?
(A) f is increasing, and the graph of f is concave down.
(B) f is increasing, and the graph of ƒ is concave up.
(C) f is decreasing, and the graph of f is concave down.
(D) f is decreasing, and the graph of f is concave up.